Adaptations that have enabled vertebrates to survive on land include all of the following EXCEPT

A. a water-resistant epidermis
B. development of a bony skeleton
C. development of longs
D. external fertilization
E. embryos enclosed within membranes


Ans: D. external fertilization

Biology & Microbiology

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Deforestation in the boreal forests is due primarily to:

a. commercial logging for rare woods to be used in furniture. b. commercial logging subsistance agriculture. c. clear-cut logging for industrial wood. d. slash-and-burn agriculture for farming e. slash-and-burn agriculture for cattle ranching

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Nuclear division in which the chromosome number is reduced from 2n to n is part of the lifecycle of all of the following organisms except

A. Molds B. Ferns C. Insects D. Bacteria E. Protozoans

Biology & Microbiology

A nonphotosynthetic plant sharing a mycorrhizal fungus with a photosynthetic plant is best described as a(n)

A. host. B. parasite. C. epiparasite. D. mutualist. E. symbiont.

Biology & Microbiology

The lacrimals glands constantly produce__________

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology