An exceptionally rich fossil deposit is known as a(n) ________
Fill in the blank(s) with correct word
Lagerstätte
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Which of the following structures are not associated with ion regulation in animals?
A. nasal salt glands B. malphigian tubules C. tear ducts D. kidneys
During the day in most plants
a. carbon dioxide accumulates in leaf cells. b. turgor pressure in the guard cells decreases. c. water and potassium move into the guard cells. d. the guard cells wilt. e. water is conserved.
A person whose cells all contain a chromosome number of 2n+1 most likely has what type of condition?
A. Trisomy B. Obesity C. Cancer D. Monosomy E. None, this is the normal chromosome number for humans.
A protein kinase can act as an integrating device in signaling if it ___________________
(a) phosphorylates more than one substrate. (b) catalyzes its own phosphorylation. (c) is activated by two or more proteins in different signaling pathways. (d) initiates a phosphorylation cascade involving two or more protein kinases.