what are the steps in embryonic development of the brain of a verterbrate( consider proper terminology, timeline, what becomes pns and cns)
Answers
The neurulation process, which results in the formation of the neural tube, which will eventually give rise to the central nervous system, causes the neural folds to curve upward and unite. The neural crest, which is also produced by the neural plate, develops into the bulk of PNS and ANS cells when its cells move to different parts of the body.
The majority of the central nervous system (CNS), which is a part of the nervous system, is made up of the brain and spinal cord. All multicellular creatures, with the exception of sponges and diploblasts, have bilaterally symmetric and triploblastic bodies, and the brain regulates and controls the activity of each of these bodies while integrating the information it has been given. It is a structure made of nerve tissue that runs the length of the body from the rostral (the nose end) to the caudal (the bottom end) (the tail end). There may be more brain tissue towards the rostral end. Only arthropods, cephalopods, and vertebrates possess true brains (precursor structures exist in onychophorans, gastropods and lancelets).
To learn more about central nervous system click on the given link: brainly.com/question/29974261
#SPJ4
Related Questions
For your club’s fundraiser, you decided to hold a bake sale. In order to make bakery items, you had to purchase 12 pounds of sugar and 15 pounds of flour. Your total cost was $9.30. On a second trip to the grocery store, you purchased 4 pounds of sugar and 10 pounds of flour for a total cost of $4.60. Which of the following represent the system of equations for this problem?
Group of answer choices
A. 12s+15f=9.30
10s+4f=4.60
B. 12s+15f=9.30
4s+10f=4.60
C. 12s+15f=4.60
4s+10f=9.30
D. 12s+4s=9.30
15f+10f=4.60
Answers
Answer:
A
Explanation:
If a mouse with two copies of the Clock mutation is placed in a lab where the lights come on each day at 7:00 AM and go off each day at 7:00 PM, the activity rhythm of this mouse will display
a 24-hour rhythm.
Answers
When a mouse with two copies of the Clock mutation is placed in a lab where the lights come on each day at 7:00 AM and go off each day at 7:00 PM, the activity rhythm of this mouse will display in 24 hours.
Zip, a brand-new hamster mutant, has an 8-hour daily rhythm when there are no light cues. An adult hamster with the tau mutation (with its own SCN lesioned) would have an 8-hour period for its rhythm if the embryonic SCN from a healthy animal were transplanted into its brain.
In animals, the suprachiasmatic nucleus (SCN) serves as the main circadian pacemaker. In scattered cultures, individual SCN neurons can produce their own circadian rhythms of clock gene expression and neuronal firing. However, enough membrane depolarization, intracellular calcium, and cAMP concentrations are required for SCN rhythmicity.
Learn more about Mutation
https://brainly.com/question/23030726
#SPJ4
what is the independent and dependent variable in the bluegill population in farm pond 1990-2002 graph?
Answers
The independent variable in the bluegill population in farm pond 1990-2002 graph is time, specifically the years 1990-2002.
The dependent variable in this case is the population size of bluegills in the farm pond over the given time period. The graph likely displays the changes in population size over time due to various factors such as weather patterns, changes in habitat, or fishing practices. It is important to note that the dependent variable, population size, is directly influenced by the independent variable, time. The changes in the bluegill population over time are not due to any specific experimental manipulation, but rather are a result of natural changes that occurred in the farm pond ecosystem. Overall, understanding the relationship between the independent and dependent variable is critical in analyzing the data and drawing meaningful conclusions about the changes in bluegill population over time in the farm pond.
To learn more about ecosystem click here https://brainly.com/question/13979184
#SPJ11
What happens during S phase?
Answers
Answer:
DNA is replicated
are males more likely to have hypophosphatemia than females explain
Answers
Answer:
Males are more likely to have hypophosphatemia.
Explanation:
In females, a mutation would have to happen in both copies of the genes to cause the disorder. It is rare having females with 2 altered copies of this gene. Males are X-linked by recessive disorders much more frequently then females.
If all the deer disappeared from this community, which change would be most likely to occur?
A. The grass population would decrease
B. The coyote population would decrease
C. The squirrel population would decrease
D. The grass population would stay the same .
Answers
Answer:
B
Explanation:
The coyote would lose their main food resource, and would start to starve to death.
Which statement(s) among A-D is false regarding sulfur-oxidizing prokaryotes? O A. They are common in marine environments, where concentrations of sulfur compounds are higher. B. They are lithotrophs. OC. The sulfur compounds utilized by them serve as electron donors to their electron transport system. O D. Their metabolism often results in very acidic external environments. O E. None of A - D are false, they are all true statements.
Answers
Sulfur-oxidizing prokaryotes are a group of microorganisms that derive energy by oxidizing various sulfur compounds. These microorganisms are important members of many ecosystems, particularly in marine environments. Here are the statements regarding sulfur-oxidizing prokaryotes:
A. They are common in marine environments, where concentrations of sulfur compounds are higher. This statement is true. Sulfur-oxidizing prokaryotes are commonly found in marine environments, especially in areas where sulfur compounds are abundant. These microorganisms play a critical role in the sulfur cycle, which is a key biogeochemical cycle in marine ecosystems.
B. They are lithotrophs. This statement is also true. Lithotrophs are organisms that obtain energy from inorganic compounds such as sulfur, ammonia, or hydrogen. Sulfur-oxidizing prokaryotes are examples of lithotrophs because they use sulfur compounds as a source of energy. C. The sulfur compounds utilized by them serve as electron donors to their electron transport system. This statement is true. Sulfur-oxidizing prokaryotes use sulfur compounds as electron donors to their electron transport system. This system is responsible for generating energy in the form of ATP, which the microorganisms use for cellular processes.
D. Their metabolism often results in very acidic external environments. This statement is also true. Sulfur-oxidizing prokaryotes produce sulfuric acid as a byproduct of their metabolism. This acid can accumulate in their surroundings and result in very acidic external environments. E. None of A - D are false, they are all true statements.This statement is correct.
All of statements A-D are true regarding sulfur-oxidizing prokaryotes.
To know more about Sulfur-Oxidizing visit:
https://brainly.com/question/13188221
#SPJ11
2. A botanist studies how trees grow. The botanist finds an equation that will
predict how much a certain tree grows in a year, based on how hot it is that year.
What kind of model is this? Explain. (6 points)
Answers
The model described by the botanist is a predictive model that uses temperature as the independent variable and tree growth as the dependent variable.
It falls under the category of regression models, specifically linear regression, which aims to find a linear relationship between two or more variables.
Linear regression models are commonly used in many scientific fields to make predictions based on data. In this case, the botanist may have collected data on the growth of the tree over several years, along with corresponding temperature data for each year. By analyzing this data, the botanist can develop a linear regression model that predicts how much the tree will grow in a given year based on the temperature.
The model could have limitations, however, as there may be other variables that affect tree growth, such as soil nutrients, rainfall, and sunlight exposure. These variables may also need to be taken into account to create a more accurate model.
Overall, the botanist's model is a useful tool for predicting tree growth based on temperature, but further research and data collection may be necessary to refine the model and account for additional variables that affect tree growth.
Learn more about predictive model here : brainly.com/question/14602602
#SPJ11
Kendrick holds the rubber blue ball halfway up the ramp and releases ir (figure 1).The ball rolls down the ramp and along the floor beyond the end of the ramp. What force caused the ball to roll down the ramp?
Answers
The force that caused the rubber blue ball to roll down the ramp is gravity. When Kendrick held the ball halfway up the ramp and then released it, the force of gravity began to act on the ball and it started to roll down the ramp.
A ramp is an inclined plane that reduces the amount of force required to move an object to a higher level. The force of gravity, which is an attractive force between any two objects in the universe, acts on objects in the direction of the center of the Earth.
This force causes objects to fall toward the ground. When the rubber blue ball was released from the midpoint of the ramp, it began to move in the direction of the force of gravity, which caused it to roll down the ramp. The force of gravity was able to overcome the ball's inertia and caused it to accelerate down the ramp. Once the ball rolled off the end of the ramp, it continued to move forward due to its inertia.
For more such questions on ramp
https://brainly.com/question/31380414
#SPJ8
Q23 Which of the following describes the correct relationship between heart sounds and blood pressure? A.Systolic blood pressure is associated with the first heart sound. B. Systolic blood pressure is associated with the second heart sound. C. Diastolic blood pressure is associated with the first heart sound. D. Diastolic blood pressure is associated with the second heart sound.
Answers
Answer:
diolostic blood preasure is associated with the second heart sound
Explanation:
Korotkoff sounds are the sounds heard by the health professional who measures the blood pressure with a blood pressure monitor and a stethoscope placed on the patient's brachial artery.
Korotkoff described five types of noise:
* The first sound is a snap corresponding to the systolic pressure. The noise is clear, repetitive on at least two consecutive systoles.
* The second sound is a soft whisper, more or less prolonged, audible between the systolic pressure and the diastolic pressure.
Abe knew from his anatomy class that there are three different kinds of muscle tissue in the body. He knew lifting weights would help build the skeletal muscle and that running was good for cardiac muscle health. He was surprised to find out that his blood vessels had smooth muscle, so his exercise regimen was actually benefitting all the muscle types of his body. Correctly sort each of the characteristics into the appropriate category.
Answers
Answer:
Three different kinds of muscles are -:
SKELETAL MUSCELES CARDIAC MUSCLES SMOOTH MUSCLESExplanation:
SKELETAL MUSCLES -: There are long, cylindrical, and striated skeletal muscle cells. They are multi-nucleated, which means they have more than one nucleus. This is because from the fusion of embryonic myoblasts, they are created. Each nucleus controls the sarcoplasm's metabolic demands around it. There are high energy requirements for skeletal muscle cells, because they contain several mitochondria in order to generate adequate ATP. Examples of skeletal muscles: arms and legs- The muscles that belong to the arms and legs feature in pairs. Abdomen and Back- These muscles are connected to the various sets of skeletal muscles that run across the torso.CARDIAC MUSCLES -: Cardiomyocytes have a short and narrow outline and are fairly rectangular. They are about 0.02 mm wide and 0.1 mm (millimetres) long, respectively. There are many sarcosomes in cardiomyocytes, which provide the required energy for contraction. Cardiomyocytes usually contain a single nucleus, unlike skeletal muscle cells. Cardiomyocytes, although they contain more sarcosomes, normally contain the same cell organelles as skeletal muscle cells. example - cardiac muscle is present in heart. SMOOTH MUSCLES -: Smooth muscle cells have a single central nucleus and are spindle-shaped. They range in length from 10 to 600 μm (micrometers), and are the tiniest type of muscle cell. In the expansion of organs like the kidneys , lungs, and vagina, they are elastic and therefore essential. As in cardiac and skeletal muscle, the myofibrils of smooth muscle cells are not aligned, meaning they are not striated, hence the term smooth. example of smooth muscles -: Walls of blood vessels , Walls of stomach , Ureters , Intestines , In the aorta (tunica media layer), Iris of the eye. ,Prostate and Gastrointestinal Tract.Soft tissues composed of long cells are called muscles. They are of various types like cardiac, skeletal and smooth based on their functions and locations.
What are the characteristics of the various muscles?Skeletal muscles are cylindrical and striated muscles that have many nuclei and are voluntary. They have many mitochondria in them and have higher energy expenditure and generation. They are found in the arms, legs and abdomen region.
Smooth muscles are longitudinal and spindle-shaped muscles and are uninucleated. They are non-striated, lacks sarcomere and are elastic. They have the greatest capability of regeneration and are found in the intestines, eyes, stomach and many other organs.
Cardiac muscles are the muscles made up of cardiomyocytes and have many sarcomeres, and gap junctions for the coordinated contractions. The muscles are connected by intercalated discs and have rhythmicity. They are found in the heart.
Therefore, cardiac, smooth and skeletal are the types of muscles.
Learn more about muscles here:
https://brainly.com/question/9883108
Olivia looked under a microscope and saw tiny protists moving around on the slide from water in a pond near her house. She remembered what she had leamed about the cell theory as she observed the protists moving. All of the following are included in the cell theory except:
A. New cells are produced from existing cells.
B. Cells are the basic units of structure and function of living organisms.
C. Cells divide when they begin to grow too large to function.
D. All living things are made of cells
Answers
Answer:
She remembered what she had learned about the cell theory as she observed the protists moving. Which three ideas are included in the cell theory ..
Explanation:
Answer:
C. Cells divide when they begin to grow too large to function.
Explanation:
A, B, and D are all parts of the Cell Theory.
What is the term given to sand, clay, and decaying organic matter?
Answers
What is the structure and function of genes?
Answers
Structure of genes:
A gene is composed of a nucleotide chain, which is made up of DNA strands. Genes are composed of nucleotides.
DNA consists of A, T, G, and C nucleotides. Hydrogen bonds form with opposite-strand nucleotides, and phosphodiester bonds form with adjacent-strand nucleotides
Nucleotides are composed of nitrogenous bases (A, T, G, and C), phosphate, and pentose sugar
Genes consist of two types of elements: core elements and regulatory elements.
In fact, core sequences or elements play an important role in protein synthesis. Gene expression is maintained by regulatory elements.
Among the most important elements of DNA are exons. The regulatory elements of a gene are sequences like promoters, enhancers, and silencers.
Function of genes:
A gene's primary function is to form or manufacture proteins, but it's not the only one. Indeed, it's partially true.
Some genes do not produce protein even though microRNAs, for example, are tiny ribonucleic acids formed from some genes, but they don't produce proteins. Instead, it regulates gene expression.
A gene carries instructions that determine your features, such as eye colour, hair colour, and height. For each feature, there are several gene variations.
To know more about genes refer to:
https://brainly.com/question/28168605
Drop a paper, a piece of thermopol, and a piece of plastic from a height of 10-15 feet. Note the time for each object to hit the ground. Why does the paper take more time than thermopol and thermopol more than the plastic piece? Make the paper to fell down in such a way that it should hit the ground before all of them. How did it happen? Explain.
Answers
We folded it into a paper airplane. We did this so that it will be more aerodynamic.
Correct me if I’m wrong.
It took the paper longer as it has quite a few surface places that air can withstand and push up, making it glide slowly to the ground rather than drop fast. The piece of plastic is likewise extra aerodynamic than the piece of paper because the air won't have as an awful lot of floor regions to face up to.
What is aerodynamic in simple terms?Aerodynamics is the way air actions around matters. The guidelines of aerodynamics give an explanation for how an aircraft is capable of fly. whatever that movements through air reacts to aerodynamics. A rocket blasting off the launch pad and a kite within the sky react to aerodynamics. Aerodynamics even acts on vehicles, considering that air flows around motors.
What is an aerodynamic example?Aerodynamics is the way air moves around matters. given that air is all around us, there are many examples of aerodynamic technology other than for aircraft. take a look at golf balls for instance. golfing balls have their unique shape with loads of dimples on them to improve their aerodynamics and create more lift.
Learn more about Aerodynamics at https://brainly.com/question/4702501
#SPJ2
Help quickly please ill mark brainliest!
Answers
Answer:
1. homo
2.hetero
3.homo
Explanation:
All living things have a molecule, called ______, which is essentially the "blueprint" or instructions for their existence.
Answers
Answer:
DNA
Explanation:
Original Strand : ATC CAT
Mutation Strand: ATC GCAT
What type of mutation has occurred above?
• deletion
• silent
• insertion
• transverse
Answers
Answer: Insertion
Explanation:
There is a letter inserted.
Original Strand : ATC CAT
Mutation Strand: ATC GCAT . The type of mutation has occurred above is the Insertion. Thus, option C is correct.
What is mutation?A mutation has been known as the changing or modification in the nucleic acid or DNA sequence of a person. This has a natural process that occurs due to mutagens.The type of the mutation that has been occurred when DNA replication occurs before meiosis is inversion.
Mutation can also be artificially induced to bring out changes in the gene sequences for specific reasons. There are different types of mutations somatic mutation occurs in the body cell and chromosomal mutation occurs in the structure of chromosome coin mutation changing the nucleotide.
In this particular insertion, there is an insert of three bases. Complementary strands in DNA are the opposite strand, so Adenine is coupled to Thymine, and Guanine is coupled to Cytosine.
Therefore, Original Strand : ATC CAT
Mutation Strand: ATC GCAT . The type of mutation has occurred above is the Insertion. Thus, option C is the correct.
Learn more about mutation, refer to the link:
brainly.com/question/13923224
#SPJ2
Suppose you start with two segments of DNA (two different genes). Each one of these two will codify for a specific set of amino acids. The two genes’ sequences are provided below, please show all the steps to get to the correct amino acids. Gene 1: GACAAGTCCACAATC – Gene 2: ATTGCAATCCGG
Hint: you need to use the Genetic Code table from lesson 5.10, Explore: The Genetic Code page 12. Make sure to follow the steps of protein synthesis: from DNA to mRNA to amino acids.
( needs to be 2 paragraphs)
Answers
Converting the genes to mRNA and using the table of genetic codes:
Gene 1: Leu Phe Arg Cys (stop codon)
Gene 2: (stop) Arg (stop) Ala
The genetic codesThe genetic codes, otherwise known as codons, are codes containing 3 nucleotide bases with each code specifying an amino acid. The nucleotide bases are mRNA bases.
Thus, for each gene, the mRNA bases would be the complementary bases.
GACAAGTCCACAATC = CUGUUCAGGUGUUAGATTGCAATCCGG = UAACGUUAGGCCUsing the genetic code table:
For the first mRNA sequence: CUG UUC AGG UGU UAG
Leu Phe Arg Cys (stop codon)
For the second mRNA: UAA CGU UAG GCC
(stop) Arg (stop) Ala
In other words, the amino acid for the first gene would be Leucine, Phenyline, Arginine, Cysteine, and a stop codon.
For the second gene, the amino acids would be a stop codon, Arginine, a stop codon, and Alanine.
More on the genetic codes can be found here: https://brainly.com/question/29413263
#SPJ1
in the modern world many countries with kings or queens have enolved into constitutional democracies, monarchs are mostly?
.
Answers
In the modern world, many countries with kings or queens have evolved into constitutional democracies, and the role of the monarch has evolved over time from that of a politically important figure to one that is more symbolic and ceremonial.
What is the significance of the monarchy?The monarchy is limited by a written constitution, the principle of the rule of law in the modern world, and representing the country at official events and ceremonies, which vary from country to country.
Hence, in the modern world, many countries with kings or queens have evolved into constitutional democracies, and the role of the monarch has evolved over time from that of a politically important figure to one that is more symbolic and ceremonial.
Learn more about the monarchy here.
https://brainly.com/question/10740346
#SPJ1
definition of tissue
Answers
The group of similar cells which work together to perform a particular function is called a tissue....
You may take help from the attachment....
I give 40 points help plsss !!!!
Why do you think cavemen used to use moss like we use paper towels? Hint: What tissue do they lack that other plants have?
Answers
Answer:
Vascular tissues.
Explanation:
The correct answer for this question is the vascular tissue
How is a cat similar to a human?
Answers
Answer:
Both are livings and are mammals
Explanation:
Hope it Helps
1. Do you think manufacturers of computers and television sets and other forms of e-waste
(Core Case Study) should be required to take them back at the end of their useful lives for
repair, remanufacture, or recycling? Explain. Would you be willing to pay more for these
products to cover the costs of such a take-back program? If so, what percent more per
purchase would you be willing to pay for electronic products?
Answers
1. The correct answer to the task above about e-wastes is that it should be recycled.
2. I won't be willing to pay more for the cost of take-back materials of devices simply because these devices still have components which will still be useful for the manufacturers.Why wastes of electronic devices should be taken back for repair or recycling.Computers, and others electronic devices; when they got broken or spoilt, needs to be recycled simply because the activities of of recycling back the devices makes more raw materials available for another re-manufacturing.
In conclusion, it can therefore be deduced from the explanation given above that recycling of substances is one of best ways of making them much more available where they are scarce.
Read more on recycling:
https://brainly.com/question/376227
#SPJ1
Genetic engineering involves to achieve desired results.
a. enzyme production
b. modifying products and processes
C changing one organism into another
d introducing traits into organisms
Please select the best answer from the choices provided
Ο Α
B
D
Answers
Answer:
The answer is option D
Hope this helps.
The answer is D.Introducing traits into organisms
I did the test and I got it correct :)
boyle's law can be used to explain part of the process by which air enters and leaves the lungs during breathing. which of the statements are true? during inhalation, the diaphragm rises, which increases the pressure in the lungs and allows air to flow into the lungs. during exhalation, the diaphragm rises, which increases the pressure in the lungs and results in air being forced out of the lungs. a decrease in lung volume results in an increase in pressure in the lungs. when the diaphragm lowers, the volume of the lungs decrease and the pressure in the lungs increases.
Answers
The correct statement is: during inhalation, the diaphragm lowers, which increases the volume of the lungs and decreases the pressure in the lungs, allowing air to flow into the lungs. During exhalation, the diaphragm rises, which decreases the volume of the lungs and increases the pressure in the lungs, resulting in air being forced out of the lungs.
What is Boyle's law:
Boyle's law can be used to explain part of the process by which air enters and leaves the lungs during breathing. The true statement is: "A decrease in lung volume results in an increase in pressure in the lungs." During inhalation, the diaphragm lowers, which increases the volume of the lungs and decreases the pressure, allowing air to flow into the lungs. During exhalation, the diaphragm rises, which decreases the volume of the lungs and increases the pressure, resulting in air being forced out of the lungs.
This is due to Boyle's law, which states that the pressure of a gas is inversely proportional to its volume, as long as the temperature and number of particles remain constant. Therefore, a decrease in lung volume results in an increase in pressure in the lungs, and vice versa. The diaphragm plays a crucial role in regulating lung volume and pressure during respiration.
To know more about Boyle's law, visit:
https://brainly.com/question/28304610
#SPJ11
Which cycle is represented in this image?
A. Nitrogen cycle
оо
O B. Water cycle
O C. Oxygen cycle
O D. Carbon cycle
SUBME
Answers
The given image represents the oxygen cycle. The correct option is C.
What is oxygen cycle?The biogeochemical cycle that describes the movement of oxygen within and between the Earth's atmosphere, biosphere, and lithosphere is known as the oxygen cycle.
Oxygen is constantly produced and consumed in various parts of the cycle, with photosynthesis, the process by which green plants and some bacteria convert carbon dioxide and water into organic compounds and oxygen, serving as the ultimate source of oxygen.
The oxygen produced during photosynthesis is released into the atmosphere and used by living organisms for respiration, which is the breakdown of organic compounds to release energy and carbon dioxide.
Human activities, such as the burning of fossil fuels and deforestation, can have an impact on the oxygen cycle by altering the balance of carbon dioxide and oxygen in the atmosphere.
Thus, the correct option is C.
For more details regarding oxygen cycle, visit:
https://brainly.com/question/9931593
#SPJ7
Your question seems incomplete, the probable complete question is:
Which cycle is represented in this image?
A. Nitrogen cycle
оо
O B. Water cycle
O C. Oxygen cycle
O D. Carbon cycle
What has the greatest effect on the ability of a substrate yo bind to an enzyme
Answers
Which of the following BEST describes electrons found in an atom?
a. Electrons are the positively charged particles in an atom.
b. Electrons are larger than protons or neutrons in an atom.
c. Electrons, combined with protons, form the nucleus in an atom.
d. Electrons move quickly around the nucleus in an atom.
Answers
Answer:
I would say d. Electrons move quickly around the nucleus in an atom.
Explanation:
The active swimmers of the pelagic realm are called the zooplankton. (True or False)
Answers
This statement, The active swimmers of the pelagic realm are called nekton, while zooplankton are the drifting animals that float with the ocean currents is true.
The active swimmers of the pelagic realm are called nekton, not zooplankton. Zooplankton are small, drifting organisms that are also found in the pelagic realm, but they are not active swimmers like nekton.
Operationally, the oceanic zone is sometimes referred to as beginning where the water depths drop to below 200 metres (660 feet), seaward from the coast into the open ocean with its pelagic zone. The oceanic zone is typically defined as the area of the ocean lying beyond the continental shelf (e.g., the neritic zone).
It comprises 65% of the ocean's entirely open water and is the area of open sea beyond the continental shelf. Deep-sea volcanoes and basins, as well as trenches that are frequently deeper than Mount Everest, can all be found in the oceanic zone.
To know more about pelagic realm click here:
https://brainly.com/question/37764
#SPJ11