Monotremes differ from the other mammals in their
A. laying of shelled eggs.
B. carnivorous nature.
C. fur.
D. containing a pouch for young to live.
E. lack of milk-producing glands.
Answer: A
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The purpose of irradiating foods is to ____
a. increase the vitamin content b. increase the mineral content c. destroy harmful bacteria, fungi and other microorganisms d. limit spoilage e. both destroy harmful bacteria, fungi, and other microorganisms and limit spoilage
A diploid germ cell will produce cells that have reduced the chromosome number by half generating four haploid nuclei in
A. fertilization. B. mitosis. C. meiosis. D. replication. E. mutation.
You're examining fossils from a variety of hominin species. Which fossils would show the greatest amount of radioactive material in relation to daughter products?
A) Paranthropus aethiopicus B) Homo habilis C) Ardepithecus ramidus D) Australopithecus garhi
One of the four nucleotide bases in DNA is replaced by a different base in RNA. Which base is it, and what is it replaced by?
A) cytosine, replaced by guanine B) thymine, replaced by uracil C) thymine, replaced by guanine D) guanine, replaced by cytosine E) adenine, replaced by uracil