Metabolic rate can be measured indirectly by measuring consumption of what substance?
A. water
B. carbon dioxide
C. oxygen
D. insulin
E. None of these answers are correct.
C. oxygen
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True or false: In addition to eliminating toxic compounds, the three-step waste elimination process also allows multicellular organisms to regulate the amount of water and solutes in their bodies
A. true B. false
All of the following characteristics describe glycoproteins EXCEPT ____
a. Glycoproteins provide support and protection. b. Glycoproteins are the main component of the extracellular matrix. c. Glycoproteins include collagen and fibronectins d. Glycoproteins are produced only on free ribosomes in the cytoplasm. e. Glycoproteins are found in tendons, cartilage, and bone.
The proposed common ancestor to all animals, shown at the left of the evolutionary tree, was a
A. bacterium. B. protist. C. plant. D. None of the answer choices is correct. E. fungus.
Which factor is ultimately responsible for the rapid population explosion of humans?
A. More prevalence of microorganisms to fight diseases naturally B. Increasing availability of natural resources C. Decreasing migration of human and animal populations D. Decline in death rates without an equivalent decline in birth rates E. Advances in reproductive technology