Echinoderms achieve locomotion by using their water vascular system
a. True
b. False
ANSWER: True
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When homologous chromosomes are aligned with each other and arranged as pairs in order of decreasing size, the resulting portrait is referred to as a(n) ____
Fill in the blank with the appropriate word.
In order for translation to occur:
a. the DNA must produce large numbers of free amino acids. b. replication must be occurring simultaneously. c. transcription must be occurring simultaneously. d. there must be large numbers of free amino acids present in the cytoplasm. e. the nuclear membrane must first dissolve.
The passage of signals back and forth between different pathways is referred to as _________.
a) transvergence b) divergence c) convergence d) coherence e) crosstalk
Plant cell walls are composed of which of the following?
A. Cellulose B. Sucrose C. Protein D. Wax