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Gala2k [10]
2 years ago
8

Chimpanzees. Why does it make the comparison between humans and chimps? What is the author of the Click and Learn trying to demo

nstrate?
Biology
1 answer:
leonid [27]2 years ago
8 0

Answer:

To show that both are evolved from a common ancestor.

Explanation:

It make the comparison between humans and chimps because the two species are so closely related to each other. Humans an chimps evolved from a single ancestor species about six or seven million years ago. Humans and chimps gradually evolved from a common ancestor due to environmental conditions that change their DNA which passed from generation to generation and bring changes in their shape and appearance as well.

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1. Which of the following statements about proteins is incorrect?
velikii [3]

Answer: Option A.

Explanation: The correct answer to the question is option A, because not all proteins are made up of some combination of 20 essential amino acids.

3 0
3 years ago
1. Which layer is the oldest? Which layer is the youngest? How do you know?
Setler79 [48]

Answer:

  1. the youngest layer is 7(middle point) because decomposition must occur in the middle of decomposed materials.the oldest is 12(upper one) because decomposed material are found at the top most of organisms.
  2. they are highly decomposed material.
  3. they don't decompose easily

5 0
3 years ago
A science class is checking to see how much life exists in local streams. The students predicted their water sample would only h
guapka [62]

Answer:

In the last step of the scientific process when they compare their results.

Explanation:

The scientific process can be described of the following steps in order:

Starting with the observation, finding a point that asks a question which will be investigated, constructing a hypothesis that can be tested, testing the hypothesis and lastly comparing the results and starting over.

The example given in the question has a question to investigate, the students have a hypothesis. They test it and find out that the water sample can hold 20 amoeba which does not match their predictions. The students will check if their results match their predictions in the last step of the process when they compare their results with their hypothesis.

I hope this answer helps.

5 0
3 years ago
18. Refer to Models 1 and 2 to complete the chart below. Write yes or no in the box for cach cell.
Ostrovityanka [42]

The most primitive cells are prokaryotic. They are simple, with no organelles and no nucleus. Animal and plant cells are eukaryotic, but they express some differences such as the cell wall, chloroplasts, or centrioles.

---------------------------------------------

<u>BACTERIA CELLS</u>

  • Bacteria are prokaryotic cells.

  • Prokaryotic cells lack a nucleus, nucleolus, and organelles.

  • They only present plasmids, ribosomes, and genetic material in their cytoplasm.

  • DNA not surrounded by membrane

  • They have a cell wall that protects the cell and a cell membrane that surrounds the cytoplasm. Some of them can also present a capsule.

  • Some of them have flagellum.

  • These organisms are capable of inhabiting places with e<em>xtreme temperature, salinity, acidity, or pH, among others. </em>

<u>ANIMAL </u><u>AND </u><u>PLANT CELLS</u>

  • Both the animal and plant cells are eukaryotic.

  • They carry their genetic material in the nucleus and mitochondria.

  • Organelles are located in the cytosol, and both of them are surrounded by a protector cell membrane.  

However, they have some differences:

⇒Cell wall : <em>A </em><em>rigid structure</em><em> that provides </em><em>support </em><em>and </em><em>protection</em><em>.</em>

• Animal cells do not have a cell wall. They are only surrounded by the cell membrane, which is flexible so they can adopt different shapes.

• Plant cells have a wall, so their shape is usually prismatic and regular. The cell wall is composed mainly of cellulose.

⇒ Chloroplast: these are organelles that accumulate chlorophyll.

• Animal cells do not have chloroplasts because they do not photosynthesize.

• Plant cells have chloroplasts, and they are in charge of the photosynthesis process that allows plants to release oxygen. These organelles use solar light as the source of energy.

⇒ Vacuoles:  

• Animal cells have many and small vacuoles whose function is to store water, ions, and waste intracellular substances.  

• Plant cells have a unique big-sized vacuole that might occupy almost 90% of the cell. Their principal function is to store water and keep the turgidity. When the vacuole gets empty, the plant loses rigidity.

⇒ Other differences are:

  • The animal cell has centrioles, while the vegetable cell does not.  
  • Plasmodium, chromoplasts, and glyoxysomes are present in the vegetable cell but not in the animal cell.

-----------------------------------

Related link: brainly.com/question/7153285?referrer=searchResults

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                    brainly.com/question/18057281?referrer=searchResults

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                    brainly.com/question/560579?referrer=searchResults

3 0
2 years ago
Which is the best method for visually representing the data for comparison
o-na [289]
The best method for visually representing the data for comparison is a data table
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