Which of the following surrounds and protects the brain in all vertebrates?
a. pharynx
b. neural crest
c. oral hood
d. notochord
e. cranium
E
Biology & Microbiology
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How can sharks use their ampullae of Lorenzini to discern between healthy and injured prey items?
What will be an ideal response?
Biology & Microbiology
The most severe mass extinction on earth occurred at the end of the
a. Cambrian b. Carboniferous c. Jurassic d. Permian e. Devonian
Biology & Microbiology
A chronic, local allergy such as hay fever is considered ________.
A. systemic anaphylactic B. atopic C. delayed D. T-cell-mediated E. antibody-mediated
Biology & Microbiology
Members of a(n) r-selected species typically have a short lifespan. Indicate whether the statement is true or false
Biology & Microbiology