Most mollusks are:a
found in fresh water.
b. terrestrial.
c. parasitic.
d. arboreal.
e. marine.
e
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Approximately _____ of IVF pregnancies result in multiple births
a. 5% b. 10% c. 20% d. 50% e. 75%
The increased variability in the frequency of the b+ allele in the smaller flour beetle population in the graph above is
an example of ____.
a. genetic drift b. gene flow c. the founder effect d. a fixed allele e. a dimorphic trait
Specialized cell junctions include all of the following EXCEPT
A) tight junctions. B) phospholipases. C) gap junctions. D) desmosomes.
Given that CO2 is produced by cellular respiration, why does the amount of CO2 in the atmosphere remain relatively constant? (When answering this question, exclude the impact of human activities on atmospheric CO2.)
A) CO2 is converted to carbohydrates in photosynthesis. B) CO2 is split apart during photosynthesis. C) CO2 mostly forms carbonate rocks. D) CO2 is trapped in dead organisms' bodies.