Which adaptation is a key characteristic of annelids that greatly increases their flexibility and mobility?
A) complete digestive tract
B) exoskeleton
C) segmentation
D) three true tissue layers
Ans: C) segmentation
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Ribotyping
A) bypasses sequencing and sequence alignments. B) exploits unique DNA restriction patterns. C) allows discrimination between species and different strains of a species. D) bypasses sequencing and sequence alignments, exploits unique DNA restriction patterns, and allows discrimination between species and different strains of a species.
M. xanthus has an alternate motility type, known as ________ motility, because it is exhibited by single cells that leave the group, perhaps scouting for prey and requires a multiprotein motility "machine."
Fill in the blank(s) with the appropriate word(s).
Four of the five answers listed below are stages of actual nuclear division. Select the exception
a. anaphase b. prophase c. interphase d. telophase e. metaphase
The grasshopper is a terrestrial animal that uses its ________ in respiration.
A. parapodia B. tracheae C. gills D. body surface E. lungs