Water induces embryonic plant cells to release the hormone ________
a. gibberelin
b. ABA
c. auxin
d. ethylene
a
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The type of tissue represented by the accompanying figure is:
a. adipose tissue.
b. cardiac tissue
c. cartilage.
d. simple squamous epithelium.
e. elastic connective tissue.
On a hike along the desert slope of the Sierra Nevada Mountains in California, you notice that there is an abundance of pinyon pine and juniper trees. We would identify these two plants as:
A) mutualistic species. B) symbiotic species. C) ecological dominants. D) competitors.
Which of the following is not a way to identify an organism by phenotype?
A) Microscopy B) Growth on agar C) DNA profiling
Which of the following is/are true about enzymes?
A. Enzymes are highly specific for the substrates they react with and catalyze only one or a limited set of possible reactions with those substrates. B. Enzymes are catalysts that speed up reactions. C. Enzymes are proteins that can be denatured by changes in pH or temperature. D. All of the choices are correct.