Answers
Answer:
1st. B
2nd. A
3rd. C
4th. D
Explanation:
I think this is right, please correct me if I am wrong!
Answer: step 1= b
Step 2= A
Step 3= c
Step 4= d
3) true
Related Questions
Help me with this please? 20 points!
Answers
Answer:
the answer os the first percentage
Which statement accurately describes the tissues indicated by the line in the microscopic image?
The connective tissues that protect the outside of arteries and veins
The epithelial cells on the inside of arteries and veins
The smooth muscle on the outside of arteries and veins
Answers
The statement that accurately describes the tissues indicated by the line in the microscopic image is "The smooth muscle on the outside of arteries and veins."
In a microscopic image of blood vessels, the smooth muscle tissue forms a layer around the outside of arteries and veins. This tissue is responsible for involuntary contractions, which help regulate blood flow and maintain blood pressure.
The connective tissues provide additional support and protection, while the epithelial cells form the inner lining of the blood vessels, allowing for efficient exchange of substances between blood and tissues.
Therefore, based on the given information, the most accurate description for the tissues indicated in the image is the smooth muscle on the outside of arteries and veins.
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____ is a neurotransmitter that is found at the neuromuscular junction, in the autonomic nervous system, and in the central nervous system.
a. Dopamine b. Acetylcholine
c. Serotonin d. Glutamate
Answers
The correct option is B, Acetylcholine is a neurotransmitter that is found at the neuromuscular junction, in the autonomic nervous system, and in the central nervous system.
The nervous system is a complex network of cells and tissues that coordinates and controls the functions of the body. It is composed of two major components: the central nervous system (CNS), which includes the brain and spinal cord, and the peripheral nervous system (PNS), which includes all the nerves outside of the CNS.
The nervous system is responsible for receiving, interpreting, and responding to signals from the environment and from within the body. It controls and regulates all bodily functions, including movement, sensation, thought, and emotion. Neurons, or nerve cells, are the basic units of the nervous system. They communicate with each other through electrical and chemical signals, which travel along specialized pathways called nerves.
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Complete Question:
____ is a neurotransmitter that is found at the neuromuscular junction, in the autonomic nervous system, and in the central nervous system.
a. Dopamine
b. Acetylcholine
c. Serotonin
d. Glutamate
for every one bond formed, … molecule of water is created
Answers
Answer: hydrogen bonds only 4 at a time
Explanation:
How to sample using a quadrat
Answers
Answer:
1. Divide the area to be sampled into a grid using measuring tapes at right angles to each other.
2. Use random numbers to generate coordinates within the grid on which to place the quadrats.
3. Place a quadrat on each coordinate.
4. Count the numbers percentage cover of each species in quadrats.
5. Use a key to identify each species.
6. Record the results in a table.
7. Calculate the average of each species.
IT TOOK ME MUCH TIME TO WRITE IT .
SO, PLEASE MARK ME AS BRAINLIEST
what type of membrane proteins are receptors for extracellular signals that are impermeable to the membrane?
Answers
The type of membrane proteins that are receptors for extracellular signals impermeable to the membrane is called transmembrane receptors.
Transmembrane receptors are a class of integral membrane proteins that span the cell membrane's lipid bilayer, with portions of the protein exposed on both the extracellular and intracellular sides of the membrane.
Specific ligands, such as hormones, growth factors, or neurotransmitters, that bind to the extracellular portion of the receptor often activate these receptors.
Upon binding to the ligand, transmembrane receptors undergo a conformational change that activates their intracellular signaling domains, which then trigger a series of intracellular signaling pathways that can lead to various cellular responses. Because they span the membrane, transmembrane receptors are capable of transmitting signals from the extracellular environment to the interior of the cell, allowing for the regulation of various cellular processes.
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I NEED HELP ASAP
Label plz
Answers
One of the first explanations of evolution was put forth by a French biologist, Jean-Baptiste
Lamarck. He theorized that animals, in responding to different environments, adopted new
habits. Their new habits caused them to use some organs more and some organs less, which
resulted in the strengthening of the former and the weakening of the latter. New characters
thus acquired by organisms over the course of their lives were passed on to the next
generation. His theory proposed this process of use and disuse, repeated over many
generations, was how species evolved.
He was wrong. Why?
Answers
Answer:
Traits acquired during an organism's lifetime cannot be passed
Explanation:
The law of use and disuse of organs as postulated by Jean Lamarck was wrong due to the fact that environmentally acquired characters cannot be passed to offspring.
Changes to organisms that are not the level of the gene cannot be passed to the offspring. For example, a wrestler that got big muscles due to constant work out cannot pass big muscles to his offspring. The offspring will need to work out in order to have big muscles. This is because big muscles in the wrestler is environmentally acquired.
Only changes that happen to the genome of an organism (mutation) can be passed to offspring.
pls answer this i need help fast!!
Answers
Answer:
Ok here
Explanation:
Answer:
Body System Primary Function
Reproductive Reproduction
Nervous/Sensory Communication between and coordination of all the body systems
Integumentary Protects against damage
Muscular/Skeletal Provides form, support, stability, and movement to the body
Explanation:
Which of the following statements best describes a molecule? A. Molecules must be made of only one atom. B. Molecules can have two to thousands of atoms. C. Molecules can have any number of atoms, from one to thousands. D. Molecules must have at least three atoms.
Answers
19
Select the correct answer.
The R in the R.I.C.E. formula stands for
ОА.
Refuel
ОВ.
Reward
Rest
OD
Renew
Answers
R:rest
I: Ice
C: Compression
E: Elevation
Hope this helps! (Brainless answer maybe? )
in the splicing step of gene expression, ______ are spliced out, and ________ are stitched together.
Answers
In the splicing step of gene expression, introns are spliced out, and exons are stitched together.
What is gene expression?Gene expression refers to the process of protein synthesis that begins with a gene in DNA and finishes with a functional protein. The genetic code is translated to make protein during gene expression. Gene expression is a complex process that requires many different molecules, including RNA polymerases, transcription factors, and other regulatory proteins.
In eukaryotic cells, pre-mRNA is modified before it exits the nucleus. RNA splicing is a crucial aspect of pre-mRNA processing, in which non-coding introns are excised and exons are joined to produce mature mRNA molecules. The splicing process is carried out by a complex machinery consisting of small nuclear ribonucleoprotein particles (snRNPs).
The snRNPs in spliceosomes recognize introns and bring together the flanking exons for precise excision. Intron removal is followed by the ligation of exons, which results in the formation of a mature mRNA molecule that can be exported from the nucleus to the cytoplasm, where it can be translated into a functional protein.
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Where are proteins that are used in the cytoplasm translated?
Answers
Proteins that are used in the cytoplasm are translated in the cytoplasm itself, specifically on ribosomes.
Ribosomes are the molecular machines responsible for the synthesis of proteins by linking amino acids together in a specific order according to the instructions carried by messenger RNA (mRNA). Ribosomes facilitate the process of translation, converting the information from mRNA into the amino acid sequence of the protein.
The ribosomes themselves are made up of two subunits, one large and one small, and they can be found either free-floating in the cytoplasm or attached to the endoplasmic reticulum (ER).
Once the protein is fully synthesized, it can then be folded and modified as needed before carrying out its specific function within the cytoplasmic environment.
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Photosynthesis cycles matter and energy in many envoronments. Explain how chemosynthesis cycles matter and energy in extreme environments. Explain your answer in 1-2 sentences.
Answers
Answer:
They have metabolism that evolves on earth, lading to development of cellular respiration and photosynthesis later.
Explanation:
Chemosynthesis is a biological transformation of carbon molecules and nutrients into organic matter using the oxidation of inorganic compounds. Thus may support life on the surface of Mars and Jupiter.Answer:
Chemosynthesis uses chemical energy instead of light energy to convert carbon or methane into organic matter. Chemosynthesis cycles matter, by passing matter and energy from one organism to aother when organisms are consumed.
Explanation:
I got 2/2 on this essay question :) prob just mix up what I said, so you're not flagged for plagirism.
How do sexually reproducing organisms inherit their DNA?*
Half comes from one parent and half comes from the other parent
All of it comes from one parent
None of it comes from either parent
O About 75 percent comes from one parent, and about 25 percent from the other parent
Answers
Answer: Half comes from one parent and half comes from the other parent.
Explanation: You have 46 chromosomes and you get 23 from each parent.
help me plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz
Answers
Answer:
I think that it is the first one.
Deposition will build up the surface of the beach, and erosion will break down the surface of the beach.
Which small RNA is involved in the silencing of transposable element transcription? A. miRNA. B. siRNA. C. Piwi D. tRNA.
Answers
The tRNA (transfer RNA) molecules, on the other hand, are involved in protein synthesis and do not play a direct role in transposable element silencing.
Therefore, the correct answer is B. siRNA.
The small RNA molecule that is primarily involved in the silencing of transposable element transcription is siRNA (short interfering RNA). SiRNAs play a crucial role in RNA interference (RNAi), a conserved cellular mechanism that regulates gene expression by suppressing the activity of specific genes or genomic elements.
Transposable elements (TEs), also known as transposons, are DNA sequences capable of moving or "jumping" within the genome.
Their uncontrolled activity can have detrimental effects on the genome stability and integrity.
To counteract this, cells have evolved mechanisms to silence and regulate the expression of TEs.
SiRNAs are generated through a series of enzymatic processes collectively known as the RNAi pathway.
When a transposable element is transcribed, either as part of the host genome or as an extrachromosomal element, the resulting RNA molecule is recognized by an enzyme called Dicer.
Dicer cleaves the transposon RNA into smaller fragments, typically 21-25 nucleotides in length, which are then incorporated into the RNA-induced silencing complex (RISC).
Within the RISC, the siRNA acts as a guide to recognize and bind to complementary sequences on the transposon RNA molecules.
This binding triggers the degradation of the transposon RNA, preventing it from being translated into protein and effectively silencing its activity. By degrading the transposon RNA, siRNAs help maintain the stability and integrity of the host genome by limiting the expression and mobility of transposable elements.
In contrast, miRNAs (microRNAs) primarily regulate the expression of endogenous genes by targeting their messenger RNA (mRNA) transcripts.
Piwi-interacting RNAs (pinas) are another class of small RNA molecules involved in genome defense, specifically in regulating transposons in the germline cells.
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9H2SO4
SCIENCE PLSSSSSSSS
Answers
Answer:
WHAT???
Explanation:
What is the question?
, create a brief presentation in which you identify three age-related conditions veterinarians deal with today. For each condition, include information explaining each of the following:
Type(s) of animal(s) typically impacted by the condition
Symptoms
Holistic approaches
Traditional approaches
Which approach (holistic or traditional) you believe is preferable and why
Remember to cite your sources
Answers
The brief presentation in which I identify three age-related conditions veterinarians deal with today are given below.
Arthritis
Typically impacts dogs, cats, and horsesSymptoms include stiffness, difficulty moving, and lamenessHolistic approaches include acupuncture, herbal remedies, and physiotherapyTraditional approaches include non-steroidal anti-inflammatory drugs (NSAIDs), corticosteroids, and surgeryI believe that a combination of both holistic and traditional approaches can be preferable, as each animal may respond differently to treatment and a customized approach may be most effective.Cognitive decline (also known as dementia or senility)
Typically impacts dogs and catsSymptoms include disorientation, changes in social behavior, and changes in sleep patternsHolistic approaches include herbal remedies, environmental enrichment, and nutritionTraditional approaches include medications such as selegiline and aniprylAgain, I believe that a combination of approaches can be preferable as different animals may respond differently to treatment.Kidney disease
Typically impacts cats, dogs, and horsesSymptoms include increased thirst and urination, weight loss, and decreased appetiteHolistic approaches include herbal remedies, acupuncture, and nutritionTraditional approaches include medications and dialysisIn this case, I believe that traditional approaches such as medications and dialysis may be more necessary in severe cases, while holistic approaches such as nutrition and acupuncture may be helpful in managing the condition and improving the animal's quality of life.It is important to work with a veterinarian to determine the most appropriate treatment approach for each individual animal.What is the presentation on veterinarians handles?The presentation are.
Condition 1: Arthritis
Types of animals typically impacted by the condition: Arthritis is a common age-related condition that can affect a wide variety of animals, including dogs, cats, horses, and other mammals.
Symptoms: The most common symptoms of arthritis in animals include stiffness, difficulty moving, and pain when moving. Animals with arthritis may also have difficulty standing up or climbing stairs, and may be less active than usual
Condition 2: Dental disease
Types of animals typically impacted by the condition: Dental disease is a common age-related condition that can affect a wide variety of animals, including dogs, cats, horses, and other mammals.
Symptoms: The most common symptoms of dental disease in animals include bad breath, difficulty eating, and drooling. Animals with dental disease may also have swollen or bleeding gums, and may experience weight loss.
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How many trophic levels can monkeys occupy in a food chain?
Answers
Answer:
A monkey can occupy two tropic levels in a food chain. These levels can be primary consumers or secondary consumers.
Answer:
two, because they eat plants and insects
Explanation:
hello please help i’ll give brainliest
Answers
Answer:
Landslide
Explanation:
Landslides are sudden falls of rocks due to gravity.
which level of ppe is utilized when there is no respiratory hazard or chemical contact considerations?
Answers
The bare minimum protection needed is Level D protection. When there are no contaminants present or work activities prevent splashes, immersion, or the possibility of sudden inhalation or contact with dangerous amounts of chemicals,
Level D protection may be sufficient. The bare minimal level of defence against dangerous surroundings is Level D. For Level D working circumstances, an air respirator is not required. Overalls, aprons, shoes, gloves, chemical-resistant glasses, face shields, and respirators are examples of PPE. PPE should always be utilised in conjunction with higher level control measures for some high risk tasks, such as spray painting, abrasive blasting, and some emergency response actions.
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Ash trees are being removed when they show signs of the ash borer, a parasite that affects only ash trees and kills them off. What best explains why the ash trees are being cut down? The ash borer is a density-independent limiting factor, and humans need to clear cut to control tree density. The ash borer is a density-dependent limiting factor and will start to spread to nearby healthy trees. Ash trees are outcompeting other trees and are thus more affected by the ash borer. Changes in climate have decreased ash borer populations which indirectly increased the need for cutting down the trees.
Answers
Answer:
The ash borer is a density-dependent limiting factor and will start to spread to nearby healthy trees.
Explanation:
Ash borer is a parasite that affects ash trees it is highly destructive and invasive. It affects it Native host causing serious damages. Infected plant is cut down to avoid its spread to other healthy plant this is because ash bored when not control can destroy a whole population of ash trees in it Native environment within the space of 10 years. Its population dependent and would keep increasing in population and become more destructive. Thus, to avoid its spread infected trees are treated cut down and cut down.
Blue ash a type of ash tree shows high resistance to ash borer because of it high tanning content that makes the leaf not suitable to consume to them.
Answer:b
Explanation:
the shows great reactivity when a person is sleep deprived which may explain why sleep deprivation is associated with .
Answers
Sleep deprivation can have significant effects on the body and mind. The amygdala, a region in the brain, shows great reactivity when a person is sleep deprived. This heightened reactivity may explain why sleep deprivation is often associated with increased emotional responses, mood swings, and even cognitive impairments.
The shows great reactivity when a person is sleep deprived may be due to the fact that the brain is overcompensating for the lack of sleep, leading to an increase in neural activity. This heightened reactivity can result in impaired cognitive function, such as difficulty with decision-making and problem-solving, as well as mood disturbances and reduced physical performance. Therefore, it is not surprising that sleep deprivation is associated with a wide range of negative health outcomes, including obesity, cardiovascular disease, and mental health disorders.
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Question 21
Perhaps the major weakness of using animal studies to determine "safe" level of air pollutants is:
a. The animal rights movement
b. Lack of technology
c. Difficulty in extrapolating the results to humans
d. Lack of funding for the research
Answers
Perhaps the major weakness of using animal studies to determine "safe" level of air pollutants is the difficulty in extrapolating the results to humans. So, the correct answer is option c.
The impacts of pollutants on animal models could not fully represent the consequences on humans since animals and humans have different physiologies and metabolisms.
In addition, it's possible that animals will be exposed to toxins at higher quantities and for shorter periods of time than people would in the actual world. As a result, it's possible that human safe air pollution limits cannot be reliably determined by experiments on animals.
Additionally, because animal studies are frequently conducted on tiny samples of animals, they might not be able to fully depict how air pollutants affect the human population.
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50- Which of the following is true if Koch's postulates are met regarding a disease? A) The disease is noninfectious. B) The disease is hereditary. C) The disease is caused by a microorganism D) The disease is the result of a dietary deficiency.
Answers
If Koch's postulates are met regarding a disease, then (c) the disease is caused by a microorganism.
Koch's postulates, which were introduced by Robert Koch, a German physician, help in identifying whether or not a disease is caused by a particular microorganism.
Koch's postulates are a set of criteria that determine whether or not a particular microorganism is responsible for causing a particular disease. The postulates are as follows: The microorganism must be present in every case of the disease. The microorganism must be isolated from the diseased host and grown in pure culture. The pure culture should cause the disease when introduced into a healthy host. The same microorganism must be re-isolated from the experimentally infected host.
When these postulates are met, it can be concluded that the disease is caused by a microorganism.
A disease can be caused by various factors. Some of the most common factors include bacteria, viruses, fungi, and parasites. Some diseases are hereditary, which means that they are passed down from one generation to another. Hereditary diseases are caused by mutations in the genes of an individual. Hereditary diseases can affect any part of the body, including the heart, lungs, liver, and kidneys.
Some diseases are caused by a combination of genetic and environmental factors. For example, some types of cancer can be caused by genetic mutations, but environmental factors like smoking can increase the risk of developing cancer. Other diseases are caused by environmental factors alone. For example, exposure to asbestos can cause lung cancer and mesothelioma. Similarly, exposure to lead can cause neurological damage and cognitive impairment in children.
In conclusion, if Koch's postulates are met regarding a disease, then the disease is caused by a microorganism.
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Disinfection is important in killing any remaining bacteria or pathogens in the wastewater. True False
Answers
Answer:
True
Explanation:
It is typically a final step to remove organisms from the treated water before the effluent is released back into the water system. Disinfection prevents the spread of waterborne diseases by reducing microbes and bacterial numbers to a regulated level.
Disinfectants are used to rapidly kill bacteria. They kill off the bacteria by causing the proteins to become damaged and the outer layers of the bacteria cell to rupture. The DNA material subsequently leaks out.
Disinfection is the process designed to kill or inactivate most microorganisms in wastewater, including essentially all pathogenic organisms. Contrast this to sterilization, which is the removal and destruction of all living microorganisms, including pathogenic and saprophytic bacteria, vegetative forms and spores.
such as fats , carbohydrates, and lipids, play an important role in providing cells with energy. multiple choice inorganic nutrients organic nutrients vitamins
Answers
Answer: Organic Nutrients
Explanation: The presence or absence of carbon is what makes organic nutrients from inorganic nutrients. Carbohydrates, lipids, proteins and vitamins have carbon in their structure, making them organic.
Now you may ask, why carbon a major role in differentiating nutrients?
Carbon is essential in all life forms. Carbon is found in all organic compounds due to its ability to form stable bonds with other elements.
Moreover, carbon forms a majority of the solid matter found in plants, which provides the energy for other living organisms to survive. Organic nutrients make sure that humans possess all of the compounds needed to do the body's basic metabolic functions.
6)
PHOTOSYNTHESIS CHAR
SUNLIGHT
CARBON DIOXIDE
WATER
OXYGEN
PLANT SUGARS
MINERALS
Carbon dioxide enters the loves through stomatiy holes in the leaves
ientific
Calc
Examine the photosynthesis model above. What is a correct conclusion about the inputs and outputs of photosynthesis?
A)
without light energy from the sun, photosynthesis would still occur
ghlight
Time
maining
0:44:39
de Tools
B)
oxygen is an input into photosynthesis, carbon dioxide is an output
o
carbon dioxide is the source of energy, oxygen is the chemical energy
produced
sunlight is the source of energy: plant sugars are the chemical energy
produced
D)
Answers
Answer:
hhhjjiioooougtyuiioooyy ini Dion LG belajar tema yang diupload oleh penggunanya jadi anda tidak perlu lagi sedang belajar kesungguhan dan keikhlasan kepada seorang kawan yang nomor satu
Explanation:
ini melawanang ini Dion LG belajar tema yang diupload oleh penggunanya jadi anda tidak perlu lagi sedang belajar kesungguhan dan keikhlasan kepada seorang kawan yang penulis pandang telah tenggelam di antara mereka yang nomor satu di antara mereka yang nomor
I’LL GIVE A BRAINLIEST IF YOU ANSWER QUICKLY!!!
Write a CER to answer the question below.
2. Explain how the chemical properties of water and the characteristics of the water cycle allow for plants to acquire the nitrogen necessary to grow in the experiment
above. Use the following terms in your answer:
-polar, dissolve, cohesion, evaporation
Answers
Answer:
Explanation:
Aquifers are groundwater reservoirs often tapped by wells. Water: Water is pretty darn important for living things.