Answer : Option A) He is studying oxygen, which can also be found in proteins.
Explanation : A scientist is examining the role of an element found in fats and carbohydrates of living things. Oxygen is the element which makes up to 65% of human body mass. This is also found in proteins inside the body.
A. assemble amino acids
Mycorrhizae are fungal colonies that are in a mutualistic relationship with plants. These fungi help the plant absorb more nutrients and water from the soil, while the plant provides the fungus with carbohydrates that it generates through the process of photosynthesis. Mycorrhizae do not carry out the assimilation of amino acids, this is a process carried out the plant by itself.
The third phases is anaphase
The principal advantage of asexual reproduction is that the organism does not have to waste time or energy looking for a mate.
True examples of Cetaceans are Whales, Dolphins, and Porpoises.