The acquisition of a key evolutionary innovation by a species gives evidence for the concept of

a. uniformitarianism.
b. gradualism.
c. convergence.
d. adaptive radiation.
e. special creation.


d

Biology & Microbiology

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Toxic substances accumulate through natural trophic flow of an ecosystem.

Answer the following statement true (T) or false (F)

Biology & Microbiology

Products that limit pH changes are often incorporated into media and are referred to as

A. enzymes. B. bases. C. buffers. D. acids.

Biology & Microbiology

What tissue in vascular plants would be used to move sugars from roots to the stems and leaves, and

from leaves to roots and stems?

a. sclerenchyma b. phloem c. collenchyma d. parenchyma e. xylem

Biology & Microbiology

Because of its location in the electron transfer

chain, delivery of electrons to each NADH results in ____ ATPs. a. 4 b. 2 c. 3 d. 32 e. 0

Biology & Microbiology