The common basilisk lizard will run across water on its hind legs in an erect position when startled by predators. This lizard has large feet and flaps of skin along its toes. What properties of water allow this lizard to walk on water?
A. Hydrogen bonds absorb heat when they break and release heat when they form. This helps to minimize temperature changes.
B. The surface tension created by hydrogen bonds is greater than the weight of the lizard initially.
C. Polar molecules are attracted to ions and polar compounds, making these compounds soluble.
D. Hydrogen bonds hold water molecules together; many hydrogen bonds must be broken for water to evaporate.
B
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The specificity of certain rhizobia to infect only particular plants is in part due to the
A) abundance of nutrients present in the soil. B) nifH genes they possess. C) rhizobial lipids that act as signaling molecules. D) season (time of year).
Ribbon worms use their ____ for capturing prey
a. epitoke b. proboscis c. pharynx d. lophophore e. choanocytes
The study of an organism's structure is called
A. physiology. B. kinesiology. C. endocrinology. D. anatomy. E. immunology.
The anterior and posterior pituitary glands differ in that ____
a. the anterior pituitary produces peptide hormones while the posterior pituitary produces steroid hormones b. the anterior pituitary produces its own hormones but the posterior pituitary does not c. the anterior pituitary is a part of the nervous system; the posterior pituitary is a part of the endocrine system d. the anterior pituitary is controlled by the hypothalamus whereas the posterior pituitary is controlled by the adrenal cortex e. the anterior pituitary is under voluntary control; the posterior pituitary is under involuntary control