A(n) (catalyst/enzyme/intermediate) is any molecule that speeds up a chemical reaction.

Fill in the blank(s) with the appropriate word(s).


catalyst

Biology & Microbiology

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Evolution is the genetic change in a species over time.

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

Biology & Microbiology

Which of the following blood vessels are small, thin, and porous enough to exchange substances at the tissue level of organization?

A. small arteries B. veins C. arterioles D. venules E. capillaries

Biology & Microbiology

When immunization levels in a population are high, ________ provides protection from infection for at-risk persons who cannot be immunized

A) contact immunity B) active immunization C) herd immunity D) adjuvant therapy E) variolation

Biology & Microbiology

What is haplodiploidy, and how is it related to altruism in honeybees?

What will be an ideal response?

Biology & Microbiology