Heterozygous
What will be an ideal response?
Describes an individual with two different alleles for a trait
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Hormones are cleared from the body by endocrine glands
Indicate whether the statement is true or false.
Which primary succession event led to the formation of the tundra?
a. large tsunamis b. glacial retreat c. volcanic activity d. the breaking up of Pangaea e. large earthquakes
Darwin observed that
A. organisms in a normal population differ in reproductive success. B. members of a population vary in their functional, physical, and behavioral characteristics. C. there is a constant struggle for survival of organisms. D. All of the choices are correct. E. None of the choices are correct.
Which of the following is not a typical attribute of an early-successional species?
A) rapid growth B) excellent dispersal ability C) large seed size D) shade-intolerance E) ability to colonize unexploited environments