Cetaceans lack sweat glands in their skin
Indicate whether the statement is true or false
T
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The specific abiotic factors defining a biome are _____
I) annual variation in temperature and precipitation II) average annual temperature and moisture levels III) maximum annual temperature and moisture levels IV) maximum annual temperatures, moisture levels, and average annual temperature A) only I and II B) only III and IV C) only I, II, and IV D) only II, III, and IV E) only I, II, and III
In mammals, males are ______ for genes on their sex chromosomes, and females can be ______ or heterozygous for genes on their sex chromosomes. rev
A. heterozygous, homozygous B. hemizygous, homozygous C. homozygous, hemizygous D. heterozygous, hemizygous
The ozone layer is valuable because it blocks
a. heat. b. UV radiation. c. radio waves. d. asteroids. e. X-rays.
Both cyanobacteria and phytoplankton are
A) multicellular. B) eukaryotic. C) photosynthetic. D) parasitic. E) heterotrophic.