A pond represents a(n) ________, while the minnows represent a(n) ________.
A. community; population
B. ecosystem; population
C. population; ecosystem
D. ecosystem; community
E. population; community
Answer: B
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What is the function of the centromere?
A. to attach the DNA to the plasma membrane B. to attach the chromosome to the spindle C. to attach the sister chromatids to each other D. to organize the microtubules to form a spindle
Humans are susceptible to scurvy because
A. they cannot synthesize amino acids. B. they do not have enough adipose tissue for vitamin A storage. C. they cannot synthesize vitamin C. D. they have a high incidence of fruit allergies. E. constant seasickness and nausea on long voyages leads to weakness and anemia.
The left side of the heart and the arteries and veins in the body tissues make up the ________ circuit
Fill in the blank(s) with correct word
When cyclin binds Cdk,
a. the cell transitions from G2 to S. b. kinase activation occurs. c. chromosomes condense. d. the cell quickly enters M phase. e. the cell begins apoptosis.