The lancelet looks like a fish but is considered an invertebrate because it:
a. lacks lungs.
b. lacks a nerve cord.
c. lacks a backbone.
d. both b and c
C
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What do all deuterostomes have in common?
A) Adults are bilaterally symmetrical. B) Embryos have pharyngeal pouches that may or may not form gill slits. C) All have a spinal column. D) All have specialized head and tail regions. E) The pore (blastopore) formed during gastrulation becomes the anus.
The brain is surrounded by a set of membranes called the
(a) pleural membranes. (b) peritoneum. (c) pericardial membranes. (d) meninges.
Several butterfly species that are edible to birds have very similar color patterns to the generally inedible monarch butterfly. This is best described as an example of what?
A. Müllerian mimicry B. Batesian mimicry C. crypsis D. intimidation E. aposematic coloration
Saccharomyces cerevisiae, which is used to make bread rise and to ferment grains, is a(n):
1.Ascomycete
2.Basidiomycete
3.Chytrid
4.Zygomycete