Answer:
The organism at location D is the common ancestor
to organisms at location A, B, and C.
Explanation:
Hi! This is your answer because the organism at location D is at the very beginning of the cladogram thus passing on traits to organisms A,B, and C.
Hope this works for you.
Enzymes are proteins, so the answer is enzymes
The best and most correct answer among the choices provided by your question is the first choice or letter A.
Their children are expected to have <span>half will have type A and half will have type B blood.</span>
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Commensal bacteria are present in places that are exposed to the external environment
(gastrointestinal, respiratory tract, vagina,mouth, skin). There bacteria live constantly with their hosts and only under specific
conditions they are able to express pathogenic traits.
The immune system has mechanisms for tolerating
these commensal micro-organisms but actively reacts with potentially pathogenic bacteria, inducing the accumulation of
regulatory T (Treg) cells.
This is why there is a symbiotic relationship between the host and the microflora