From an evolutionary perspective, true nerve cells are first seen in the phylum:a
Porifera.
b. Cnidaria
c. Ctenophora.
d. Mollusca.
e. Arthropoda
b
Biology & Microbiology
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Which cycle relies heavily upon bacteria?
a. water b. carbon c. nitrogen d. phosphorus e. sedimentary
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The mapping of the human genome in the mid-1980s was integral for identifying new human genetic markers because of the identification of what types of polymorphic DNA markers?
What will be an ideal response?
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A primitive groove is the equivalent of a:
a. neural crest.
b. branchial groove. c. blastodisc. d. blastopore. e. neural groove
Biology & Microbiology
What is hypotonic
What will be an ideal response?
Biology & Microbiology