Global climate change is caused by _____ and other greenhouse gases
a. ozone
b. carbon dioxide
c. nitrogen
d. oxygen
e. argon
b
Biology & Microbiology
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A habitat patch is synonymous with:
A. a metapopulation. B. a local population. C. a habitat island. D. a habitat corridor. E. a habitat cohort.
Biology & Microbiology
So far, the only disease that has been globally eradicated is
A. polio. B. smallpox. C. measles. D. diphtheria.
Biology & Microbiology
Which one of the following types of tissues surrounds hollow organs that change shape or size regularly?
A) loose connective tissue B) dense connective tissue C) elastic connective tissue D) reticular connective tissue
Biology & Microbiology
An embryo with meroblastic cleavage, extraembryonic membranes, and a primitive streak must be that of _____
A) an insect B) an amphibian C) a bird D) a sea urchin
Biology & Microbiology