Two alleles of the same gene ________
A) are always different
B) are always the same
C) can be the same or can be different
D) originate from the same parent
C
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Loss of water from the aerial parts of plants is called _____
A) dehydration B) high heat of vaporization C) respiration D) gas exchange E) transpiration
Four of the five animals listed below are threatened or endangered. Select the exception
a. whooping crane b. sea otter c. sea urchin d. yellow-bellied glider e. Karner blue butterfly
What is the major advantage of sexual reproduction over asexual reproduction?
A. genetic variability when the environment is stable B. requirement of less energy C. simpler form of reproduction D. faster reproduction E. genetic variability during an ecological disaster
Substrates for biosynthesis are generated from catabolic reactions microbes use the same enzymes or different ones?
What will be an ideal response?