Which of the following does not vary predictably with the depth of the aquatic environment?
a) dissolved oxygen
b) temperature
c) penetration by sunlight
d) salinity
Answer: d) salinity
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While conducting a plant diversity survey in a temperate rainforest in Washington state, you come across a number of individuals of a low-lying plant species. Back at the lab, tests indicate that the majority of the plant material is haploid. The plant you discovered is likely most closely related to
A. complex streptophyte algae. B. sphagnum moss. C. lycophytes. D. conifers. E. daisies.
Which of the following is NOT one of the four classic symptoms of inflammation?
A) swelling B) heat C) pain D) redness E) rash
Which process occurs during cellular migration and development into specialized tissue?
A) Cells are transferred to the appropriate region of the embryo via the bloodstream. B) Cells fuse to produce multinucleated giant cells. C) Similar cells attach themselves to each other by secreting glycoproteins. D) Most cells of the developing tissue undergo the process of apoptosis.
Which of the following does not contribute to the evidence for the out-of-Africa hypothesis?
a. the gradual divergence of Homo sapiens in different locations b. the rapid replacement of Homo sapiens approximately 100,000 years ago c. coalescence d. the existence of greater mitochondrial diversity in Africa e. the interbreeding of humans and Neanderthals