The cranial cavity contains
a. the lungs and heart.
b. the spinal cord.
c. the brain.
d. both b and c.
b
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Male lizards experimentally dosed with supplemental testosterone were more active, displayed more
often, and had a higher rate of death.
Indicate whether the statement is true or false.People often pick up and "adopt" baby wild animals, which then leads to a set of dependent behaviors that the young animal learns very rapidly. The dependent behaviors will be retained through life, endangering the survivability of the animal around people or in the wild. This behavior is learned by
A. observation. B. imprinting. C. reflex. D. habituation. E. taxis.
Cholesterol
a. has a rigid backbone of four carbon rings. b. is the most common sterol in animal tissue. c. is a lipid without a fatty-acid component. d. is needed to produce sexual development and maturity. e. is all of these.
Prions _________.
a. are believed to be the pathogen that causes variant Creutzfeldt-Jakob disease. b. are resistant to high temperatures and drying. c. are proteins that are capable of replicating themselves. d. are normal brain proteins that have an incorrect shape. e. all of these