Which of the following occurs in prophase?
a. sister chromatids attach
b. DNA replicates
c. chromosomes align in the middle of the cell
d. the nuclear envelope breaks down
e. sister chromatids separate
Answer: d
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What class of neurons in the central nervous system sends commands to muscles?
A. afferent neurons B. efferent neurons C. peripheral neurons D. interneurons
In the figure above, this group of plants was given treatment II
a. 1 b. 2 c. 3 d. 4 e. 5
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A. disinfection B. antisepsis C. sterilization D. sanitization
A porpoise and a dolphin, both mammals, mate and produce an embryo, but the embryo fails to
complete development. This event describes:a. gestational abortion. b. hybrid inviability. c. hybrid breakdown. d. temporal isolation. e. hybrid sterility.