The effect of directional growth shown in the accompanying figure is known to be caused by ____
a. thigmotropism
b. gravitropism
c. abscisic acid
d. salicylic acid
e. vernalization
ANSWER: b
Biology & Microbiology
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All protists are _____
A) unicellular B) eukaryotic C) symbionts D) monophyletic E) mixotrophic
Biology & Microbiology
Four of the five structures listed below are
haploid. Select the EXCEPTION.
a. spores b. sporophytes c. egg d. sperm e. gametophyte
Biology & Microbiology
Parathyroid hormone (PTH)
a. stimulates osteoblasts to digest bone. b. stimulates the absorption of calcium in the kidneys. c. helps to inactivate vitamin D. d. is secreted from the thyroid gland. e. stimulates the release of intrinsic factor from the digestive tract.
Biology & Microbiology
Giardia, is a protist that causes severe diarrhea. Which supergroup is this species found in?
a. excavata b. SAR clade c. archaeplastida d. unikonta
Biology & Microbiology