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lys-0071 [83]
3 years ago
11

Why do scientists believe that prokaryotes existed earlier than eukaryotes

Biology
1 answer:
Snowcat [4.5K]3 years ago
4 0

Answer:

Scientists believe that prokaryotes existed earlier than eukaryotes because certain eukaryote cell structures resemble prokaryotes.

Explanation:

Thank me later.

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What two species are most closely related from the evolutionary tree
Vedmedyk [2.9K]

Answer:

Species a and c

Explanation:

The species c, was more closely related to species a than species b was. This is because species a and c just recently evolved into different species in evolutionary history.

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3 years ago
Which clouds are best associated with a thunderstorm?
scZoUnD [109]
Hi! I am here to answer your question. The answer is B, towering funnel clouds. These clouds can cause tornadoes, but they are also the cause of the severe thunderstorms before tornadoes or during tornadoes. These thunderstorms are the most dangerous storms you will ever see, and  if you are involved in one. I advise you to get in a basement. If you have no basement, get a few blankets and duck down in the bathtub. Trust me, this can save your life. I just want you to be safe!
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4 years ago
Analysis of the second swab has confirmed that the causative organism is Streptococcus pyogenes, a gram-positive organism. Imagi
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Answer:

d. purple, spherical-shaped organisms arranged in chainlike formations

5 0
3 years ago
What is the chord in a circle located
salantis [7]
Line of symmetry to split the circle into a half.
5 0
3 years ago
Some viruses, especially animal viruses, have an envelope surrounding their nucleocapsid. This envelope may have viral proteins
amm1812

Answer:

Some viruses, especially animal viruses, have an envelope surrounding their nucleocapsid. This envelope may have viral proteins embedded in it. Why are the viral proteins more readily recognized and targeted by the immune system than the envelope?

1) Enveloped viruses are often coated with animal cell membrane as they leave the cell. This membrane is a major component of the viral envelope. The viral proteins are more readily recognized by the immune system, as they are more distinct from the materials normally found in and on the cells. However, the envelope can contain several types of viral components as well.

Explanation:

This envolope from viruses that has proteins are better for the immune system to recognize them.  Because enveloped viruses use similar mechanisms for delivery of genetic material into cells, there may be ways to prevent infection before viral entry that would be effective for large numbers of different viruses.

7 0
4 years ago
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