Most of Earth's water resides in
A) the oceans.
B) the polar ice caps and glaciers.
C) freshwater lakes, ponds, rivers, and streams.
D) groundwater.
A
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A genetic mistake takes place during replication and the new DNA strand has the sequence ATG. What is the three-base sequence on an RNA strand transcribed from this series of nucleotides?
What will be an ideal response?
What is the probability that an offspring will have an ss/RR genotype from a cross of two Ss/Rr individuals?
A. 25% B. 6.25% C. 3.12% D. 12.5%
Interference competition and exploitative competition are both examples of ____
a. coevolution b. mimicry c. interspecific competition d. intraspecific competition e. parasitism
The oldest known megafossils of early vascular plants may be characterized as:
a. possessing dichotomously branched stems without leaves or roots. b. possessing dichotomously branched stems with leaves. c. possessing erect stems with megaphylls. d. possessing roots but lacking sporangia. e. lacking roots but possessing megaphylls.