Productivity in coastal waters is high due to
a. nutrients from land.
b. sediments rich in nutrients.
c. upwelling.
d. both a and c
e. a, b, and c.
E
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Members of this phylum have radial symmetry and nematocysts; they may have polyp or medusa
forms (or both) as adults.
a. Nematoda b. Cnidaria c. Porifera d. Rotifera e. Ctenophora
Lines of longitude run perpendicular to the axis of the Earth
Indicate whether the statement is true or false
An inoculating loop or needle is sterilized in a flame or incinerator:
What will be an ideal response?
The letter designation of human blood type is controlled by a single gene with three alleles (the allele that produces type A blood, the allele that produces type B blood, and the allele that produces type O blood). This is an example of _______.
a) incomplete dominance b) a polygenic trait c) environmental influence d) multiple allele inheritance