Generally, r-selected organisms exhibit:a
short life spans and early maturity.
b. long life spans and extended parental care of offspring.
c. long development time to maturity, but small body size.
d. large body size and extended parental care of offspring.
e. large body size, but short life spans.
a
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Alternate forms of genes resulting from mutations are called
A. alterons. B. isoforms. C. lethal. D. alleles.
Nutrients are often transformed and cycled by oxidation-reduction reactions that can change the chemical and physical characteristics of the nutrients.
Answer the following statement true (T) or false (F)
Which molecule degrades cyclical AMP into AMP?
a. erythropoietin b. adenylate cyclase c. phosphodiesterase d. isomalathion
Sexual reproduction increases genetic variability through
a. the exchange of genetic information between male and female gametes during meiosis I. b. the random separation of homologous chromosomes. c. the union of male and female gametes. d. crossing over, independent assortment, and random fertilization. e. random assortment of male and female chromosomes.