Bacteria: They are in your intestines to break down food and produce vitamin k your body needs.
Protist: Plant-like protists produce almost one-half of the oxygen on the planet through photosynthesis.
Hope this helps in some way !
The southern elephant seal<span> (</span>Mirounga leonine) is one of the two extant species of elephant seals<span>.
Source: Google
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Answer:
The answer is B, I believe, because it states here that, "Enzymes are highly selective catalysts, meaning that each enzyme only speeds up a specific reaction. ... The molecules that an enzyme works with are called substrates. The substrates bind to a region on the enzyme called the active site. There are two theories explaining the enzyme-substrate interaction."
Chromosomes are found in the nucleas of a human cell and are carrier of generic information and responsible for the transmission of these information from one generation to another
