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yulyashka [42]
3 years ago
14

The placement of prokaryotes into major clades within the domains Archaea and Bacteria has been based on __________.

Biology
1 answer:
Alja [10]3 years ago
6 0

Answer:

Molecular evidence

Explanation:

Earlier archaea were considered as bacteria because they show some similarities with bacteria like binary fission as mode of reproduction, lack of a nucleus, etc.

Later Carl Woese separated bacteria in a different domain and divide prokaryote into two domains called bacteria and archaea. He separated archaea from bacteria on molecules evidence.

He compaired rRNA sequence between bacteria and archaea and observed that they both differ in rRNA sequence which allowed him to make a separate domain for archaea.

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The answer is; fossil

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7 0
3 years ago
The membrane that surrounds a cell acts as a gateway. This helps the cell stay healthy. Why does the cell need a gateway?
guapka [62]
I think it might be C I am not 100% sure though
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3 years ago
Tall plants are dominant over short plants. One parent is homozygous dominant and the other is heterozygous for plant height.
Greeley [361]

Answer:

a. all tall

Explanation:

If genotypically one of the parents is homozygous dominant and another one is heterozygous for plant height then phenotypically all their progeny will be tall.

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The cross is depicted in the attachment.

Here it may also be noted that genotypically two of the progeny will be homozygous dominant while two of the progeny will be heterozygous but phenotypically all the progeny will be 'tall'.

7 0
3 years ago
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A person with blue eyes probably inherited his recessive blue eye color from
Alik [6]

Answer:

(C) Both parents

Explanation:

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5 0
3 years ago
Compare and Contrasts Biotic Factors and Abiotic Factors. What are they?
baherus [9]
A biotic factor is a living thing that has an impact on another population of living things or on the environment. Abiotic factors do the same thing, but they are non-living. Together, biotic and abiotic factors make up an ecosystem. To survive, biotic factors need abiotic factors.
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