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9966 [12]
3 years ago
14

A group of college students working on a project on bio-gas have found some bacteria in the bio-gas plant. These bacteria can ut

ilize methane as their source of energy and do not need oxygen for their survival. What kind of bacteria could they be? Archaebacteria/ Eubacteria/ Probacteria
Biology
2 answers:
crimeas [40]3 years ago
3 0
The answer to the problem above is methanogen are a variety of archaebacteria that happens on anaerobic environment ( anaerobic environment means a surrounding that is living in the absence of oxygen or free air) . It can also utilize methane as their source of energy.
Paraphin [41]3 years ago
3 0

Answer:

The answer is Archaebacteria.

Explanation:

Hope this helped ya.

<u><em>< Sarah ></em></u>

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5 0
2 years ago
Fossils show that ancestors of the giraffe had shorter necks than the modern giraffe. The evolution of the modern giraffe may be
MaRussiya [10]

Answer:

B. Directional selection

Explanation:

When natural selection starts to choose one phenotypes that is an extreme (as in, a really small neck or a really long neck), this is an example of <u>directional selection.</u> It makes sense for giraffes to have evolved this way, because the longer the neck, the more ably they can eat food from high branches. The more food they could get, the more chance of reproduction, the more "evolutionarily fit" they are.

Stabilizing selection is when national selection picks average phenotypes (like a medium-sized neck). Disruptive selection is when the extremes are both picked (like all the medium-sized neck giraffes die, and two different species start to emerge). Sexual selection is picking a mate based on traits. Clearly, those answers don't work here.

8 0
3 years ago
Ryan and his family are visiting a theme park and he wants to ride a roller coaster. At which
netineya [11]

Answer:

Higher objects (with further to fall) have greater potential energy. therefore the maximum height would have the highest amount of potential energy

6 0
3 years ago
While tuning a guitar, you realize one of the strings is not the right thickness. The pitch needs to be higher in order for the
ladessa [460]
Answer is c hope this helps
3 0
3 years ago
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The diagram shown represents a pair of homologous autosomes. The letters B and b represents genes for a certain trait. These let
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Answer:

A

Explanation:

The two genes are B and b are located in the same spot, therefore they are alleles or alternative forms of the same gene.

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2 years ago
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