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Ivan
4 years ago
14

A large proportion of archaeans are extremophiles, so called because they inhabit extreme environments with high acidity, salini

ty, and/or temperature. Such environments are thought to have been much more common on the primitive Earth. Thus, modern extremophiles survive only in places that their ancestors became adapted to long ago. Which of the following is, consequently, a valid statement about modern extremophiles, assuming that their habitats have remained relatively unchanged?A) Among themselves, they should share relatively few ancestral traits, especially those that enabled ancestral forms to adapt to extreme conditions B) On a phylogenetic tree whose branch lengths are proportional to the amount of genetic change, the branches of the extremophiles should be shorter than the non-extremophilic archaeans C) They should contain genes that originated in eukaryotes that are the hosts for numerous species of bacteria D) They should currently be undergoing a high level of horizontal gene transfer with non- extremophilic archaeans
Biology
1 answer:
PSYCHO15rus [73]4 years ago
4 0
Answer: B

They haven’t changed much over time as they occupied the same habitat/niche, therefore, their genetic material has not changed much.
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Why does japan feel the need to conquer other nations ? right answer DONT GUESS ​please
Ede4ka [16]
To put it short, Japan was scared.

Scared of what? Well, Japan was scared of going down the same way China did. A long time ago, Japan used to isolate itself. It refused to open its harbors to foreign countries, and so fell behind technology-wise.

A ship from the United States Navy arrived on the harbor of Japan. The Japanese told the ship to back off, but it kept going on. After the Japanese showed some aggression, the ship began shelling the nearby buildings. The captain of the ship forced the leader of Japan, the shogun, to sign a treaty with them to open its harbors.

This absolutely devastated the Japanese. The belief that they were strong was devastated by the United States Navy.

Japan had a giant reform in which power was given back to the emperor and industrialization began.

The country, knowing that it had to be as modern as possible, essentially copied actions of the West.

Unfortunately, one of these actions was imperialism. Japan had an incentive to conquer other nations, and they did exactly that until WW2 ended.

-T.B.
4 0
4 years ago
What are the main benefits of selectively breeding chickens?
grin007 [14]

Answer:

It requires no company patent. ...

It allows for higher profit. ...

It can create new varieties of good crops. ...

It does not have any issue of safety. ...

It helps eliminate diseases. ...

It influences the production of food coming from plants in a positive way.

Explanation:

It requires no company patent. ...

It allows for higher profit. ...

It can create new varieties of good crops. ...

It does not have any issue of safety. ...

It helps eliminate diseases. ...

It influences the production of food coming from plants in a positive way.

7 0
3 years ago
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Use the drop-down menus to complete these statements. Enzymes act as catalysis, coupling reactions with spontaneous reactions. T
raketka [301]

Answer:

1: Nonspontaneous

2: anabolic

3: exothermic

Explanation:

I guessed

7 0
2 years ago
\ which of the following places would an animal husbandry worker NOT find a job?
romanna [79]
I think the answer to this is C.
4 0
3 years ago
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The observation that different geographical areas sometimes exhibit plant and animal communities of similar appearance, even tho
zaharov [31]

Answer:

C) convergent evolution

Explanation:

Convergent evolution is a type of pattern of evolution which occurs when the two unrelated species evolves with the same feature or traits as a result of the exposure of the species to the same environmental conditions.

This type of evolution results in ion the formation of the analogous structure which is functionally similar but is evolved from the same ancestor.

In the given question, since the two unrelated species: plants and animals exhibit the same appearance on different geographical areas thus represents that convergent evolution is taking place.

Thus, C) convergent evolution is the correct answer.

8 0
3 years ago
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