Which animals serve as intermediate hosts for human schistosomes?
A. Humans
B. Reduviid bugs
C. Fish
D. Snails
E. Mosquitoes
Answer: D
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The two kinds of bone tissue are
(a) compact and loose. (b) compact and spongy. (c) dense and spongy. (d) loose and dense.
Genetic Regulation
What will be an ideal response?
Considering that virtually all cells in any given individual contain the same genetic information, how is it possible to
have different cell types with unique functions? a. Gene expression is regulated such that different cell types produce different proteins. b. All cells express all proteins encoded in an organism’s genes, but turn them on selectively. c. Gene expression is regulated based on the age of the organism. d. Only some cell types make protein products, while others do not. e. Cells lose unneeded genes with each cell division.
Which observations illustrate shared ancestry by anatomical comparison studies? Check all that apply.A) The same structure has evolved to carry out different functions.B) Different structures evolve in similar ways when subjected to the same selective pressures.C) A structure becomes vestigial.D) Features are similar during embryonic development.
What will be an ideal response?