What is a fruit?
A. A mature ovary
B. A plant embryo
C. A swollen plant zygote
D. The protective endosperm
Answer: A
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When scientists transferred the gene for the AVP receptor from male voles into male mice, the male mice
a. began to eat roots, a preferred food of voles b. attempted to locate and mate with female voles c. preferred female mice they had already mated with to new females d. ceased normal social behaviors such as grooming and co-sleeping e. became aggressive and territorial
What distinguishes the gorillas and chimpanzees from the orangutans and gibbons?
a. They live in the trees. b. They are larger in size. c. They nurse their young. d. They have prehensile tails. e. They walk on their knuckles
The mass number of an atom is:
A. the number of neutrons only B. the number of protons plus the number of neutrons C. the number of electrons plus the number of protons D. the number of electrons, plus the number of neutrons, plus the number of protons E. the number of protons only
What does it mean for a double helix of DNA to be antiparallel and complementary?
What will be an ideal response?