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pentagon [3]
3 years ago
6

A certain bacterial species contains carboxysomes. From this information, it can be inferred that the species is capable of Choo

se one: A. carbon fixation. B. polyketide synthesis. C. the reductive TCA cycle. D. nitrogen fixation.
Biology
1 answer:
IRISSAK [1]3 years ago
4 0

Answer:

The correct answer is A. carbon fixation.

Explanation:

Carboxisomes are the microcompartment which is present in cyanobacteria and some chemotrophic bacteria which contain an enzyme called RuBisCO. This enzyme is responsible for carbon fixation in bacteria and plants.

Carboxysomes contain many polyhedron proteins that contain these enzymes which do carbon fixation in the Calvin cycle. As in carboxysome, the concentration of CO2 around RuBisCO is high so the competition with O2 is decreased or eliminated that favors carbon fixation and production of organic compounds. So the correct answer is A.

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3 years ago
What is a good example of a response-based definition of stress?
TEA [102]

Answer:

What is a good example of a response-based definition of stress?

Bruce experiences stress because his heart rate increased when he noticed Jack had a knife.

Explanation:

Stress can have many different causes. In this case, it is produced by seeing danger in Jack by having a knife. His heart rate increases because this is a common response in stress, which would enable people to scape. It is important to control stress lebels.

A stressor is distinguished as a threat. If someone anticipates that it could lead to some kind of harm, loss, or other negative consequence. However, if you see the positive side and believe that it carries the potential for gain or personal growth, it would be appraised as a Challenge.

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3 years ago
How did stromatolites contribute oxygen to the early atmosphere?
Neko [114]

How did stromatolites contribute oxygen to the early atmosphere?

by weathering of rocks

through photolysis

through methane degradation

through photosynthesis

Answer:

by weathering of rocks

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8 0
2 years ago
Read 2 more answers
Current evidence suggests that eukaryotes represent one or more endosymbiotic events in which the host cell was:
trasher [3.6K]

Current evidence suggests that eukaryotes represent one or more endosymbiotic events in which the host cell was: <u>mitochondrial genomes</u>

What is  mitochondrial genomes?

The DNA found in mitochondria, which are cellular organelles found in eukaryotic cells that transform chemical energy from food into a form that cells can utilise, such as adenosine triphosphate, is known as mitochondrial DNA (mtDNA or mDNA)](ATP). Only a small amount of the DNA in a eukaryotic cell is contained in the mitochondria; the majority of the DNA is found in the cell nucleus and, in plants and algae, also in plastids like chloroplasts.

The first large portion of the human genome to be sequenced was mitochondrial DNA.

According to this sequencing, the human mtDNA contains 16,569 base pairs and codes for 13 proteins.

Animal mtDNA serves as a cornerstone of phylogenetics and evolutionary biology because it evolves more quickly than nuclear genetic markers .

Learn more about the mitochondrial genomes with the help of the given link:-

brainly.com/question/15688630

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8 0
1 year ago
Many of the rate controllers mentioned for later walking also affect running. However, because running requires _______ generati
azamat

Answer:

greater, smaller.

Explanation:

Rate controllers are known to holds the emergence of the motor skill. These rate controllers are known to affect the running, walking and motor activites of the individual.

Running generally requires the greater generation of the force for the movement and to balance the ability. The smaller changes are required in these constraints that may cause the disappearance of the running skill.

Thus, the answer is greater, smaller.

8 0
3 years ago
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