The _________ is an internal support structure and can be found in organisms in the phylum echinodermata.
A. endoskeleton
B. hydrostatic skeleton
C. gastrovascular cavity
D. exoskeleton
E. vascular canal
A. endoskeleton
Biology & Microbiology
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A thermometer measures
(a) the degree of hot or cold. (b) temperature. (c) a and b. (d) none of the above.
Biology & Microbiology
Which type of cell provides metabolic support to the neurons?
a. Muscle b. Neuroglia c. Loose connective d. Squamous e. Dense connective
Biology & Microbiology
________ is the living and dead particles of plankton connected by strands of mucous
a. Marine snow b. Pleuston c. Tripton d. Neustron
Biology & Microbiology
Explain why mice are appropriate animal models for human behavioral genetics researc What will be an ideal response?
Biology & Microbiology