Extra protective behaviors toward young may have evolved from a common ancestor in evolutionary lines leading to the:
A) dinosaurs, turtles, and lizards.
B) mammals, turtles, and snakes.
C) crocodiles, dinosaurs, and birds.
D) turtles, snakes, and lizards.
E) amphibians, lizards, and fish.
Answer: C
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When nutrients are limited, they do all the following except:
a. reduce metabolism. b. decrease growth rates. c. affect growth form. d. immobilize an organism. e. cause algal blooms.
What are the products of the hydrolysis of ADP?
a. ATP, a water molecule, and free energy b. ATP, an inorganic phosphate ion, and free energy c. AMP, an inorganic phosphate ion, and free energy d. AMP, a water molecule, and free energy
The thymus gland, which is responsible for the development of T cells, stops growing during adolescence and shrinks as one grows into adulthood
Indicate whether the statement is true or false
Mitotic activity by the apical meristem of a root makes which of the following more possible?
A) increased delivery of water to the aboveground stem B) decreased absorption of mineral nutrients C) increased absorption of carbon dioxide. D) effective lateral growth of the stem