Diffusion results from
a. ATP-driven processes.
b. use of ion gradients.
c. inherent kinetic energy of matter.
d. selective permeability.
e. loss of positive charge.
C
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Segmentation
a. is the primary motility in the small intestine during digestion of a meal. b. is both mixing and propulsive. c. refers to sequential ring-like contractions that sweep downward, creating a stripping motion that pushes the chyme forward. d. both (a) and (b) above. e. all of these answers.
Mammals have a cold-gated channel that is structurally similar to the heat-gated channel used by pit vipers to locate their prey
Indicate whether the statement is true or false
Monosomy could result from
A. an ovum of 23 chromosomes fertilized by a sperm with 23 chromosomes. B. an ovum of 22 chromosomes fertilized by a sperm with 23 chromosomes. C. an ovum of 24 chromosomes fertilized by a sperm with 23 chromosomes. D. None apply.
Spaces in the bone matrix that are occupied by osteocytes are ________.
A. lamellae B. periosteum C. trabeculae D. lacunae