what is the mostly phylogenetic tree based on these shared derived characters? When did these characters appear during the aliens'evolutionary history? Drag the lens and shared derived characters to their appropriate locations on this phylogenetic tree.
Answers
A derived feature is one that emerged in the lineage before a clade and distinguishes members of that clade from other people, whereas a shared character is one that two lineages share in phylogenetic tree.
How does a phylogenetic tree work?Understanding a phylogeny is analogous to reading a family tree. The root of the tree represents the lineage of the ancestors, while the points of the branches represent their descendants. By moving from the root to the tips, you advance through time. A lineage splitting (speciation) is shown as branching on a phylogeny. When a speciation event occurs, a single ancestral lineage produces two or more daughter lineages. A clade is a grouping of all current and extinct individuals of a lineage who descend from the same ancestor. A phylogeny makes it easy to establish whether a group of lineages is a clade. The phylogeny might be simplified by deleting just one branch, where the severed branch now contains a clade.
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Related Questions
what is haploid?
explain it
Answers
Answer:
Haploid is the quality of a cell or organism having a single set of chromosomes. ... Sexually reproducing organisms are diploid (having two sets of chromosomes, one from each parent). In humans, only their egg and sperm cells are haploid.
Answer:
Haploid cells contain a single set of chromosomes. Gametes are an example of haploid cells produced as a result of meiosis. Examples of gametes are the male and female reproductive cells, the sperm and egg cell respectively.
Explanation:
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Tabulate two difference between growth in plants and that of animals
Answers
A major impact that humans have on the pedosphere is through urbanization. Which of the statements about urbanization is true?
A. It decreases the average temperature of the area.
B. It helps prevent flooding in populated areas.
C. It results in cleaner water in lakes, ponds, and streams
D. It cause loss of habitat for many types of animals.
Answers
Answer:
A ,it decreases the average temperature of the area
Explain how the cell division of cancer cells like these are misregulated. Identify genetic and other changes that might have caused these cells to escape normal cell cycle regulation
Answers
Answer:
Due to non-functioning of protein.
Explanation:
The cell division of cancer cells like these are misregulated because they can't be control by the proteins that is responsible for the control cell division. The cancer cells can multiply without any growth control factors, or growth-stimulating protein signals that control its growth. There are some proteins that is responsible for control of cell division but due to mutation that protein of substance stop working and the cancer cell grows uncontrollable.
Which particles orbit around the nucleus?
Answers
Answer: Electrons
Explanation:
Consider a melt that has cooled to a temperature such that olivine, pyroxene, amphibole, and calcium-rich plagioclase feldspar have crystallized. which elements will be enriched in the melt, and which will be depleted in the melt?
Answers
Answer:
Calcium is enriched, while they are depleted of carbon.
Explanation:
It should be understood that during the process of volcano eruption, carbon is liberated as the molten magma is coming out , this is due to the heat that is being evolved. And calcium will be the molecules that will make the molten solidified after wind has cooled it down.
That is why they are depleted of carbon, and enriched with calcium.
All but one of the following is an endogenous factor: Application rate of herbicide. Acre feet of irrigation water applied. Price of herbicide per gallon. Decision as to which herbicide would be best given farm's IPM strategy
Answers
The factor that is an endogenous factor is: d. Decision as to which herbicide would be best given the farm's IPM (Integrated Pest Management) strategy.
What is an Endogenous Factor?An endogenous factor refers to a factor that originates from within the system or process being studied. In the given options, the endogenous factor is d. Decision as to which herbicide would be best given the farm's IPM (Integrated Pest Management) strategy.
This factor is influenced by internal considerations and decisions made within the system itself. On the other hand, options a, b, and c are exogenous factors because they are external to the system and can affect the system but are not directly determined by it.
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What are the reactants of cellular respiration? What are the products?
Answers
Answer:
During cellular respiration, the reactants—glucose (sugar) and oxygen—combine together to form new products: carbon dioxide molecules and water molecules. Adenosine triphosphate (ATP) is produced as the form of energy that can be used for other cellular processes.
Explanation:
what does the specific defense of the immune system use to fight pathogens.
A. Red blood cells
B. Vaccines
C. Lymphocytes
D. Plasma
Answers
Answer: your answer is c.
Explanation: The immune system responds to antigens by producing cells that directly attack the pathogen, or by producing special proteins called antibodies. Antibodies attach to an antigen and attract cells that will engulf and destroy the pathogen. The main cells of the immune system are lymphocytes known as B cells and T cells.
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Lymphocytes does the specific defense of the immune system use to fight pathogens.
What is immune system?"Immune system is a complex network of cells, tissues, organs, and the substances they make that helps the body fight infections and other diseases."
What is pathogen?"Pathogen is an agent causing disease or illness to its host, such as an organism or infectious particle capable of producing a disease in another organism."
What is a lymphocyte?"A lymphocyte is a type of white blood cell that is part of the immune system."
What are the types of lymphocytes?There are two main types of lymphocytes:
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Invasive species have traveled the globe with humans and found success in new environments. Unfortunately, their success has been at the cost of many native species. Invasives may out-compete natives, feed on native species, or spread disease to native populations.
Feral cats are considered an invasive species, especially in Australia and Japan, where they have caused the decline (and occasional extinction) of many small mammals, ground-nesting birds, reptiles and amphibians. They also carry infectious diseases that can spread to native animals, humans, and livestock.
Why do you think it is so difficult to control the spread of invasive species?
Answers
Invasive species are very difficult to control because they have adaptations that may face different environmental conditions, thereby removing competing species.
What is an invasive species?An invasive species is any species that is introduced into a foreign ecosystem (generally due to human activity) and they are able to survive and displace other native species due to the presence of evolutionary adaptations that better fits the conditions in such environments.
Therefore, with this data, we can see that invasive species are generally introduced by humans into new environments and may cause a disequilibrium by eliminating competitive native species.
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Propose an experiment to test the rate of meat digestion in animals with differing amounts of the enzyme pepsin in their digestive tracts. Be sure to include the independent and dependent variables, along with the specific procedure and materials to be used.
Answers
The experiment to test the rate of digestion of meat in animals with different amounts of the enzyme pepsin in their digestive tracts could be the test of true intestinal digestibility of meats used in diets for carnivores.
Digestibility of meatsProtein digestibility in pepsin supernatant is one of the most used enzymatic methods when evaluating the quality of protein of animal origin, being internationally recognized by the Association of Official Analytical Chemists.
With this information, we can conclude that the experiment to test the digestion rate of meats in animals with different amounts of the enzyme pepsin in their digestive tracts could be the test of the true intestinal digestibility of meats used in diets for carnivores.
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Which best describes a disadvantage of this scenario?
Scientists have cloned goats so they can take out a
protein in the goats' milk and use it to make medicine.
The goats are raised in a laboratory. The medicine that
is produced can help with certain diseases that affect
humans.
O The goats will have more genetic variation
O The goats will become infected with the human
diseases.
There are unknown health risks to the goats.
O There could be many health risks to drinking the
goats' milk
Answers
Answer:
the answer is B
Explanation:
it was right for me
Answer:
unknown health risks…
Explanation: C
I will give brainlist if correct!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! What is the first step in the classification of living things? Organizing them into 6 domains Organizing them into 3 domains Organizing them into 6 kingdoms Organizing them into 3 kingdoms
Answers
Answer:
Pretty sure it's taxonomy? in not completely sure though
Explanation:
Question: What is the first step in the classification of living things?
Answer: Organizing them into six kingdoms. It's important to know that the kingdom is the first and most mainstream classification on the seven tiers. After that you can start organizing them downwards the chain.
Uplifting Note: Considering we may never meet again, I'll wish you a happy birthday now! Happy birthday!
How does temperature change as altitude increases
Answers
Answer:
Temperature varies with altitude, as follows: In the troposphere, temperature decreases as altitude increases.
Explanation:
Answer:
Temperature decreases as altitude increases
Victor made the graph shown to record the observations of an experiment to study the effect of soil additives on the growth of plants. Three identical plants having a
height of 25 cm were used for the experiment. The first plant had no soil additives, the second plant had wheat straw in the soil
, and the third plant had polymer in
the soil. All other growing conditions of the plants were kept constant.
Plant Growth
300
250
200
Height in cm
150
No additive
Wheat straw
Polymer
100
SO
D
Month
Which correct step in the scientific method did Victor most likely do before the step described here?
O Analyze the data
O Publish the results
Construct a hypothesis
O Make conclusions based on the graph
Answers
Answer:
A
Explanation:
I got it right
A student examined two slides in the laboratory, one slide with normally dividing cells and another slide with cancerous cells. Which statement best predicts what the student will observe on the slide with cancer cells compared to the slide with normally dividing cells?
aThe slide with cancer cells will show more cells in interphase because they are growing in preparation for cell division.
b.The slide with cancer cells will show more cells in interphase because the stages of mitosis take longer to complete.
c.The slide with cancer cells will show fewer cells in interphase because the cells are dividing rapidly.
d.The slide with cancer cells will show fewer cells in interphase because the cells are not dividing.
Answers
The answer is option a, The slide with cancer cells will show more cells in interphase because they are growing in preparation for cell division. The correct answer is A.
The slide with cancer cells will show more cells in interphase because they are growing in preparation for cell division. There are some differences between cancer cells and normal cells.
Normally dividing cells go through the cell cycle: G1, S, G2, and M. During G1, cells grow and develop, but they don't begin DNA synthesis. DNA synthesis occurs during S phase, which is followed by G2, where the cell checks and prepares its newly synthesized DNA for mitosis.
Finally, mitosis, which is a sequence of steps during which a cell divides into two identical cells. Cancer cells, on the other hand, do not enter into the G0 phase; instead, they continue to divide.
As a result, they divide more quickly and require more nutrients. Since more cells need to be produced, more cells will be in interphase, growing and developing in preparation for cell division. Therefore, the correct answer is A.
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Recent research on Arabidopsis has shown that florigen is probably ________.
a) A hormone that promotes flowering
b) A disease-resistant gene
c) A type of photosynthetic pigment
d) A neurotransmitter in the brain
Answers
Recent research on Arabidopsis has shown that florigen is probably
a) A hormone that promotes flowering
Why is Enviromental science is an interdisciplinary science
Answers
From where do chemotrophs get energy? water, light, food, and air
Answers
Answer:
hemotrophs are structures that get strength for one burning of energized matter benefactors in their atmosphere.Chemoautotrophs use not organic strength beginnings to combine basic compounds from colorless odorless gas.Chemoheterotrophs are weak to resort to colorless odorless gas to form their own basic compounds.
Explanation:
What industry was created when people suddenly had more time and money available?
Answers
you have studied the histological structure of a number of organs in this laboratory. three of these are diagrammed below. identify and correctly label each. review sheet 38
Answers
The first diagram is of the human organs chart is of the lung, The second diagram is of the stomach and The third diagram is of the kidney.
Here is a general guide to identifying and labeling histological structures:1. Identify the tissue type: Determine whether the tissue is epithelial, connective, muscular, or nervous. Look at the arrangement of cells, the type of cells present, and the presence of any extracellular matrix.2. Identify the organ: Once you have identified the tissue type, you can then identify the organ it belongs to by looking at the overall shape, structure, and location of the tissue.3. Label the parts.
Finally, label the specific parts of the organ, such as the lumen, basement membrane, glands, or blood vessels. Here are some commonly studied organs in histology, along with their identifying features: Organ: Stomach, Tissue type: Simple columnar epithelium, Location: Upper left quadrant of the abdomen, Features: Rugae, gastric pits, glands, muscularis mucosae, submucosa Organ: Liver, Tissue type: Parenchymal and stromal cells
Location: Upper right quadrant of the abdomen, Features: Hepatocytes, sinusoids, bile canaliculi, central vein, portal triad, Organ: Kidney, Tissue type: Nephron, Location: Abdominal cavity, Features: Glomerulus, Bowman's capsule, proximal and distal convoluted tubules, collecting duct, renal pelvis, ureter.
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Which method direct or indirect staining do you think would give you a better estimate of the true size of a microrganism?
Answers
Direct staining would give a better estimate of the true size of a microorganism.
Direct staining is a staining method in which the dye directly interacts with the microorganism, allowing for a more accurate estimation of its true size. In direct staining, a colored dye is applied to the microorganism, which adheres to its surface and provides contrast for visualization under a microscope.
Indirect staining, on the other hand, involves staining the background or the area surrounding the microorganism, rather than the organism itself. This method may provide contrast and visibility but may not accurately represent the true size of the microorganism.
Direct staining offers several advantages when it comes to estimating the true size of a microorganism. By staining the microorganism directly, the dye is more likely to penetrate and adhere to its outer surface, providing a clearer and more accurate representation of its size. This staining technique allows for better visualization of the boundaries and contours of the microorganism, enabling precise measurements.
Indirect staining methods, such as negative staining or background staining, are often used for specific purposes like highlighting certain structures or observing particular features of microorganisms. While they can be useful for certain applications, they may not provide an accurate representation of the microorganism's actual size.
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Describe the different cultural characteristics identified when you use agar plates, agar slants, and nutrient broth.
Answers
When using agar plates, agar slants, and nutrient broth, different cultural characteristics can be observed.
On agar plates, the cultural characteristics such as colony morphology, size, color, and shape are easily distinguished, as well as the presence of pigmentation and the degree of hemolysis, if any. These characteristics help in the identification of various microorganisms .Agar slants are typically used to observe the growth patterns and motility of microorganisms, as well as for long-term storage. Cultural characteristics like growth consistency, color, and the formation of aerial structures can be assessed on slants. Nutrient broth, a liquid medium, is used to evaluate characteristics such as turbidity, pellicle formation, sedimentation, and gas production. These observations provide information about the growth pattern and metabolic activities of the microorganisms, using agar plates, agar slants, and nutrient broth allows for the observation of various cultural characteristics, aiding in the identification and study of microorganisms.
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1
A student investigated the effect of temperature on the diffusion of vitamin C.
Vitamin C is an important part of a balanced diet and is found in some fruits and vegetables. When
vegetables are boiled in water the vitamin C diffuses out into the surrounding water. A dialysis
tubing bag filled with vitamin C solution was used to represent a vegetable
The blue dye DCPIP was used as an indicator for the presence of vitamin C. High concentrations
of vitamin C decolourise DCPP quickly.
The student used the method described in step 1 to step 14.
Step 1
Step 2
Step 4
A syringe was used to fill a dialysis tubing bag with 10 cm³ of vitamin C solution
Step 3 A large test-tube was labelled hot. The dialysis tubing bag was put into the large
test-tube and secured in place with an elastic band, as shown in Fig. 1.1.
Step 5
Step 6
Step 7
Step 8
The outside of the filed dialysis tubing bag was rinsed by dipping it into a beaker of
distilled water
Steps 1 to 3 were repeated with a second dialysis tubing bag and a large test-tube
labelled cold
elastic band holding the
open end of the dialysis
tubing bag in place
dialysis tubing bag
containing 10 cm³
of vitamin C solution
E
large test-tube
Fig. 1.1
The large test-tube labelled hot was half-filled with hot water.
The large test-tube labelled cold was half-filled with cold water.
The temperature of the water in the large test-tube labelled hot was measured.
The temperature of the water in the large test-tube labelled cold was measured.
Answers
An increase in temperature will increase the rate of diffusion of vitamin C because temperature increase results in increase in diffusion rate.
What is the effect of temperature on the rate diffusion of molecules?Diffusion is the process of even distribution of a substance from high concentration regions to low concentration regions.
Diffusion of substances occurs as a result of difference in concentration between two points or regions known as concentration gradient.
The rate of diffusion is the time taken for a substance to diffuse.
The rate of diffusion depends on the following:
the nature of the substance - of diffusion occurs fastest in gases than on liquids or solids.temperature - diffusion rate increases with increase in temperature.concentration gradient - the rate of diffusion increases with concentration gradientTherefore, increase in temperature will increase the rate of diffusion of vitamin C.
In conclusion, the rate of diffusion depend on the nature of the substance, concentration gradient and temperature.
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Answer:Why the dialysis bag was rinsed in step 2?
Explanation:
what soil types represent a sand and loam soil
Answers
Answer:
a type of soil used for gardening
Lionel is planning to run a marathon tomorrow. What type of carbohydrates should he eat for dinner the night before the race? Explain your answer and give some examples.
Answers
Answer:
He needs to take Carbohydrate load for storage of glycogen in the muscles so that enough reserves will be available when the amount present is used up during the long race.
CHO in controlled amount should be taken. 4g of CHO per body weight. Rice, oatmeal,pancakes,bread with yogurt should be taken.They are very easy to digest.The goal is to load the body with enough CHO to be converted to glycogen the following day.
Explanation:
Answer:
The night before the race, Lionel should eat complex carbohydrates because they are a source of long-lasting energy. This includes foods that contain starch, like cereal, bread, pasta, rice, potatoes, or corn.
Explanation:
It's the sample response
Why is the intensity of a pulse different at different sites?
Answers
Answer:
Because pulse wave velocity decreases as arterial diameter decreases, a slight difference in local vasculature can cause inter-site differences not only in pulse transit time but also in its variations.
Hope that answers your question.
Unlike sweat glands and ceruminous glands, which of the following is true about mammary glands?
They are not glands associated with the skin.
They are usually active only in pregnant and lactating females.
They are modified sebaceous glands.
They do not secrete into ducts
Answers
The correct statement about mammary glands is: They are usually active only in pregnant and lactating females.
Mammary glands are specialized glands that produce milk to nourish offspring. Unlike sweat glands and ceruminous glands, which are active throughout life, mammary glands become active mainly during pregnancy and lactation. Female mammals have mammary glands, which are specialised organs that produce milk to feed the young. Two of these glands are often placed on either side of the midline on the chest, where they are usually found. The mammary glands are joined to the nipples by a network of ducts, and they are made up of glandular tissue and adipose tissue. Hormonal changes during pregnancy cause the mammary glands to expand and become ready to produce milk. After giving delivery, the mammary glands respond to the baby sucking by releasing milk through the nipples. In many mammalian species, the mammary glands are essential for the survival and development of the young.
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Which best describes the relationship between DNA, genes,
and chromosomes?
Answers
Answer:
Genes are segments of deoxyribonucleic acid (DNA) that contain the code for a specific protein that functions in one or more types of cells in the body. Chromosomes are structures within cells that contain a person's genes. Genes are contained in chromosomes, which are in the cell nucleus.
Melinda had two slides of unknown cells. She recorded her observations of each one on the chart below.
According to the information in the given chart, what type of cell is cell X?
a
prokaryotic cell
b
bacteria cell
c
animal cell
d
plant cell
Answers
Answer:
According to the information given by Melinda on the chart, about the observed cells, cell X is an animal cell.
Explanation:
Animal cells are eukaryotic cells, with the ability to differentiate and unite to form tissues.
An animal cell contains elements such as a cell membrane, cytoplasm, nucleus and organelles —including mitochondria— by which it can be identified and differentiated from other cell types.
An important feature of animal cells is the existence of cytoplasmic compartments that form the endomebrane system, in relation to the cytoplasmic membrane and organelles.
The other options are not possible because:
Bacterial and prokaryotic cells lack nuclei and organelles. Plant cells possess chloroplasts and cell wall, as described for the Y cell.