Cardiac glycosides, molecules causing a drastic effect on vertebrate heart function, are produced as defensive chemicals by plants belonging to

A. the mustard family.
B. the bean family.
C. the grass family.
D. the milkweed and dogbane families.
E. the poison ivy, oak, and sumac families.


Answer: D

Biology & Microbiology

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In the accompanying diagram, ____ indicates the location of chyme production

a. A b. D c. E d. F e. G

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The process by which the movement of internal bonds converts one type of organic compound into another is ____

a. condensation b. cleavage c. functional group transfer d. electron transfer e. rearrangement

Biology & Microbiology

Community structure changes over relatively short timescales through succession, but it tends to be stable over longer geological timescales

Indicate whether the statement is true or false

Biology & Microbiology

Nauplius, a unique kind of larva, is characteristic of

A. mites. B. chelicerates. C. insects. D. crustaceans. E. horseshoe crabs.

Biology & Microbiology