Which of these statements accurately describes a similarity between sharks and ray-finned fishes?
A) They are equally able to exchange gases with the environment while stationary.
B) They are highly maneuverable due to their flexibility.
C) They have a lateral line that is sensitive to vibrations.
D) A swim bladder helps control buoyancy.
C
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If a different scientist was comparing the soil nutrients in a region where Venus fly-traps live to soil components in other ecosystems, which type of ecology would that be?
a. population ecology b. community ecology c. ecosystem ecology d. organismal ecology
All of the following are ways in which scientists can transfect an organism EXCEPT
A) spraying plants with herbicide containing new genes. B) infecting a host organism with a virus carrying a new gene. C) using a "gene gun" to shoot genes into cells in culture. D) injecting DNA into an egg using a small, sharp pipette.
A cell's ________ remains constant whereas its phenotype changes in response to environmental influences.
Fill in the blank(s) with the appropriate word(s).
MARs are
a. concentrated at centromeric regions. b. regions of the scaffold that attach to eukaryotic DNA during interphase. c. usually found at the ends of eukaryotic chromosomes. d. regions of the scaffold that attach to eukaryotic DNA during metaphase. e. regions of eukaryotic DNA that attach to the scaffold.