Two pieces of information that scientists use to prepare evolutionary trees for living and extinct organisms are the fossil evidence that is found on the earth and the DNA samples, as these two are helpful in the evolutionary tree representation.
What is the significance of the evolutionary tree?An evolutionary tree, or phylogenetic tree, is a diagrammatic representation that shows the relationships between different species or groups and is used to represent the evolutionary history and how organisms are related to one another through common ancestry. The evolutionary tree is important as it helps scientists understand the relationships between different species and how they have evolved over time to form new species.
Hence, two pieces of information that scientists use to prepare evolutionary trees for living and extinct organisms are the fossil evidence that is found on the earth and the DNA samples, as these two are helpful in the evolutionary tree representation.
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Defend it: viruses are not alive. Select the five correct statements. A. They don't make their own membranes. B. They have their own proteins. C. They have no metabolism outside the host cell. D. They don't move. E. They don't respond to their environment. F. They don't have cytoplasm or ribosomes. G. They have only one nucleic acid.
Answer:
viruses are not alive because:
they do not make their own membranes.
they don't have cytoplasm or ribosomes.
they have only one nucliec acid.
they have no metabolism outside the cell.
they don't move.
Explanation:
all these statements are true.
Organisms that eat other organisms for the energy needed to live are
called?
Answer:
I'm pretty sure it is a heterotroph
Answer:
heterotroph
Explanation:
is an oorganism that eats other plants and animals for energy
Most animal lineages evolved during the period.
Answer:
Cambrian period
The Cambrian period, occurring between approximately 542–488 million years ago, marks the most rapid evolution of new animal phyla and animal diversity in Earth's history.
Explanation:
Answer:
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Explain how stem cell therapy helped Lucy break down deoxyadenosine
Answer:
It helped her fight off the stop protein, eventually helping her create more amino acids.
The stem cell therapy helped lucy break down deoxyadenosine as it helped her fight off the stop protein, eventually helping her create more amino acids.
What is amino acid?Amino acid has the organic compound containing both an amino[tex](-NH2)[/tex] and a carboxylic acid [tex](-COOH)[/tex] functional group. The component of amino acid not contained in starch is that amino acids contain nitrogen but not starch.
On the other hand, starch has a carbohydrate molecule made up of monomers called monosaccharides. The monosaccharide is a long chain of carbon, hydrogen and oxygen atoms. This suggests that the major structural difference between amino acids and starch has that amino acids contain nitrogen but not starch.
There are several types of protein such as structural protein, transport proteins, antibodies, contractile proteins, hormonal proteins, and enzymes.
Therefore, The stem cell therapy helped lucy break down deoxyadenosine as it helped her fight off the stop protein, eventually helping her create more amino acids.
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A hawk eats a mouse. This kills the mouse, but it also means that the remaining mice will not have to compete as much for food with each other. Based on this information, what is the relationship between the hawk and the mouse?
A. The two organisms are in a mutualistic relationship.
B. The two organisms are in a predator-prey relationship.
C. The two organisms are in a parasitic relationship.
D. The two organisms are in a competitive relationship.
Answer:
The two organisms are in a predator-prey relationship.
Explanation
because the hawk is the predator, it ate the mouse, and th mouse was they prey, it was eaten
Answer:
B
Explanation:
help a girl out please thanks:))
Answer: to me its either a or c!
but i mostly feel like its c!
Explanation:
hope i helped, sorry if i got this answer wrong!
What are proteins made from?
Answer:
amino acids
Explanation:
Answer:
proteins are built from a set of only telwenty amino acid ,each of which has a unique side chain.The chain of amino acids have different chemistries
What are the roles of a decomposer? Check all that apply.
1) Decomposers kill harmful microorganisms.
2) Decomposers break down waste and dead organisms.
3) Decomposers provide oxygen to the atmosphere.
4) Decomposers convert sunlight into food energy.
5) Decomposers recycle nutrients in the environment.
Answer:
2) Decomposers break down waste and dead organisms.
Explanation:
I hope this helps :)
Answer:
2 and 5
Explanation:
PLEASE HELP ASAP! WILL GIVE BRAINLIEST TO CORRECT ANSWER! HELP!! HELP!!
The diagram shows the structure of an animal cell.
The image of an animal cell is shown with some organelles labeled numerically from 1 to 6. The outer double layer boundary of the cell is labeled 1. A stacked disc like structure is labeled 2. A broad rod shaped structure with an irregular shape inside it is labeled 3. The entire plain section that forms the background of the cell and is within the outer boundary is labeled 4. A small circular shape within the large circular shape is labeled 5. The large central circular shape is labeled 6.
Which number label represents the cell membrane?
1
2
4
6
(this is middle school science)
Answer:
4
Explanation:
Answer:
4
Explanation:
I took the test
How are electrons distributed around the nucleus?
Answer:
they move in orbitals or subshells
Explanation:
Answer:
In layers of orbits around the nucleus. The first orbit is two electrons and the rest are 8 electrons each except the last orbit which are the valence electrons.
Explanation:
Can buoyancy act between bodies in contact or not in contact??
Answer:
Buoyancy is a force. It is an contact force. But why? Because it is a force that acts between two objects, opposite a body force.At which intersection is turning left at a red light permitted?
Answer:
I think (c) is the correct answer
Explanation:
Please give thanks to all my answers and please mark as brilliant and please follow me
how can HIV affect individuals day to day life
- be precise
Answer:
that seems hard
Explanation:
1. How does the cell membrane allow animals to move without rupturing the cells in the body?
2. How does a cell membrane allow some molecules to pass right through the membrane?
3. Why is it important the some molecules (oxygen and carbon dioxide) be allowed to pass through the cell membrane without the use of a transport system?
4. How does the cell membrane allow the cell to reproduce into two separate cells?
5. In the lab, small bubbles would merge with the larger bubbles. How does this property of cell membranes demonstrate how a vesicle can transport substances from one organelle to another?
6. Cells require molecules that cannot simply pass through the cell membrane. Explain how the cell can use proteins to transport these molecules across the cell membrane.
.
Explanation:
1)The cell membrane functions as a semi-permeable barrier, allowing a very few molecules across it while fencing the majority of organically produced chemicals inside the cell. Electron microscopic examinations of cell membranes have led to the development of the lipid bilayer model (also referred to as the fluid-mosaic model). The most common molecule in the model is the phospholipid, which has a polar (hydrophilic) head and two nonpolar (hydrophobic) tails.
2) simple diffusion across the cell plasma membrane. The structure of the lipid bilayer allows small, uncharged substances such as oxygen and carbon dioxide, and hydrophobic molecules such as lipids, to pass through the cell membrane, down the concentration gradient is , by simple diffusion.
3) some molecules, such as carbon dioxide and oxygen, can diffuse across the plasma membrane directly, but others need help to cross its hydrophobic or however, because they are charged the polar, they can't cross the phospholipid part of the membrane without help .
4) during fission a copy of the DNA is made and attached to the cell membrane as well. As this cell elongate in preparation for fission, the two DNA copies are pulled apart two opposite ends of the cell. New membrane material is deposited between the two ends of the cell, and a new wall grows between them .
5) UMASS STEM-ED From Bubbles to Cell Membranes Workshop. Bubble ... dynamic nature which can't be properly appreciated in a static textbook. ... the small thread through one of the straws.
6) example of passive transport and active transport across a cell membrane so, cell membranes are semipermeable meaning they have control over what molecules can or cannot pass through. Some molecules can just drift Inn.
Why might scientists use computer models in research instead of conducting an experiment on the real system they would like to study?
Answer:
Using the real system might mess up and using a computer model is clearer and gives a more advanced view
REWORD THIS IN YOUR OWN WORDS!
They are eukaryotic, which means they have a nucleus. Most have mitochondria. They can be parasites. They all prefer aquatic or moist environments.
Answer:
Eukaryotic organisms have no nucleus and prefer aquatic or moist environments. Interestingly, some are parasites, and some do not have mitochondria.
Explanation:
You may need to add some more sentences to better link these two together.
Someone help me give me the answer
PLS HELP
Place the following images in the chronological order that represents the process of pollination.
Question 4 options:
2, 3, 1, 4
3, 2, 4, 1
1, 2, 3, 4
2, 3, 4, 1
Answer:
1 4 2 3 sorry if i am wrong i hope it is wright
PLS HELP, Why is gene flow important to the overall health of a species?
Answer:
Gene flow is an important mechanism for transferring genetic diversity among populations. ... Gene flow is expected to be lower in species that have low dispersal or mobility, that occur in fragmented habitats, where there are long distances between populations, and when there are small population sizes.
Explanation:
Answer:
Because it is important for transferring genetic diversity among populations. Even low levels of gene flow can have a large impact, counteracting the other evolutionary force.
Explanation:
Give an example of positive slope.
Answer:
slope=4
or I found this one where it says as the number of people that quit smoking increases, the number of people who get lung cancer decreases if this is what you mean
Explanation:
I think this is what you were asking, as long as it is a positive number it is a positive slope
The diagram above represents the phases of the moon. Position 1 represents the
new moon. Positions 2 through 8 represent the phases of the moon that follow.
Which phase does position 8 represent?
Answer:
waxing crescent
Explanation:
Position 8 represents waxing crescent phase. It is observed after a new moon and can be observed until the first quarter of moon.
What are the phases of moon?The waxing and waning nature of the moon is responsible for its various phases. This is due to the fact that moon is the only natural satellite of the earth. It revolves around the earth in a fixed orbit.
As earth revolves around the sun, the sunlight that falls on moon makes us visble those parts. Thus, it appears that moon is changing its shape.
A lunar month which is of 29.5 days usually is contains four primary and four intermediate phases. It is described as: New moon, Waxing crescent moon, First quarter, Waxing gibbous moon, Full moon, Waning gibbous, Last quarter and Waning crescent moon.
These phases have specific time in which they can be observed in the sky. New moon is an exception, as no part of the moon is visible then.
The phases of the moon are therefore considered as astronomically important.
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4. Free or low-cost apps have few of the same benefits as fitness trackers.
True
False
The given statemnet is false because Free or low-cost apps can provide many of the same benefits as fitness trackers, albeit with some limitations.Option B
Fitness trackers are dedicated devices designed specifically for monitoring physical activity and collecting data related to fitness goals. They often include features like step counting, heart rate monitoring, sleep tracking, and GPS tracking. These devices may offer a more seamless and integrated user experience, with optimized hardware and software for tracking and analyzing fitness data.
However, free or low-cost apps can offer similar benefits and functionalities, albeit with some trade-offs. Many smartphone apps are available that can track steps, monitor heart rate, record workouts, and provide guidance for various exercises. These apps can be downloaded and installed on smartphones, making them accessible and convenient for users.
While some features might be more accurate or reliable in dedicated fitness trackers due to specialized sensors, smartphone apps can still provide valuable data and insights for tracking fitness progress. They can offer personalized workout plans, track progress over time, provide reminders and notifications, and offer social features for sharing achievements and connecting with others.
Moreover, free or low-cost apps often come with the advantage of being customizable, allowing users to choose the features and functionalities that are most relevant to their specific fitness goals and preferences. They can be easily updated and expanded with new features as technology advances.
In conclusion, while dedicated fitness trackers may offer a more comprehensive and optimized experience, free or low-cost apps can still provide many of the same benefits, making them a viable alternative for individuals seeking fitness tracking capabilities.
Option B
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3. Vaccines stimulate the body to produce...
Answer:
Antibodies
Explanation:
lets your body figure out how to be immune to the disease.
Hope that helps
different versions of the same gene (represented
with letters)?
Answer:
Different versions of a gene are called alleles. Alleles are described as either dominant or recessive depending on their associated traits
Explanation:
what do you notice when moving the slide around the stage?
Answer:
It's the same there is no change.
what is a warm air mass that rises over a cold air mass?
Answer: warm front
Explanation: When a warm air mass meets a cold air mass, the warm air rises since it is lighter. At high altitude it cools, and the water vapor it contains condenses. This type of front is called a warm front. It generates nimbostratus clouds, which can result in moderate rain.
A particular mountain stream is home to a population of salamanders that are red in color. In the past year, a second population of salamanders that are dark blue in color moved into the same
stream. Scientists researching the stream have recently discovered young salamanders that are red with dark blue patches on their bodies.
What can the scientists conclude from this evidence?
The Salamanders are suffering from a bacterial disease
The salamanders are on the verge of becoming extinct
The Salamanders undergo sexual reproduction
The Salamanders undergo sexual reproduction
true or false:
One difference between somatic cells and gametes is that somatic cells are identical to one another, while gametes are not
Answer:
true.
Explanation:
all the somatic cells of an organism have same number of chromosomes while gametes are haploid and have half number of chromosomes. so gametes are different from somatic cells.
What is a model..???
Answer:
two definitions 1 a person trying in something to show pepole like dresses
2 a modle in science so scienntist can see and go wow this is what it is like the dinosur museum the t rex is a modle of how it would look like
Explanation:
hope it helps keep on questioning on lol
RNA has a different nitrogenous base. This" different" base pairs with Adenine meaning RNA base pairs are represented (A-U & C-G). What is the name of the nitrogenous base only found in RNA
A. Thymine
B. Uracil
C. Cytosine