An important adaptation related to reproduction and first seen in reptiles is _____.
Fill in the blank(s) with the appropriate word(s).
Ans: internal fertilization
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Which of the following statements about the relationship between ants and acacia trees is/are accurate? Check all that apply.
_____ The ants protect the acacias from other insects. _____ The ants protect the acacias from epiphytic plants and vines. _____ The ants live in the hollow thorns of the acacias. _____ The ants are provided with sugar or other nutrition by some species of acacia. _____ The ants aid pollination of the acacias.
What raises the pH of chyme so that digestive enzymes can function in the small intestine?
a. bicarbonate b. pepsin c. gastrin d. bile e. brush border enzymes
Which region represents the highest HANPP as a percentage of local NPP?
A) Australia B) Canada C) South America D) India
Genes that normally block cell division are called:
a. growth factor genes. b. oncogenes. c. tumor suppressor genes. d. proto-oncogenes. e. growth inhibiting genes.