In instrumental conditioning, what is the function of a positive reinforcer? A to induce fear
B.
to neither strengthen nor weaken a behavior
to weaken a behavior
OD
to strengthen a behavior

6. in domesticated cats, the following are independently assorting: normal ears (t) is dominant to tufted ears (t); curved whiskers (c) is dominant to straight whiskers (c); the presence of six toes (s) is dominant to five toes (s); gene for hair length is an x-linked codominant. the three phenotypes for hair length are long (xhxh), medium (xhxh), and short (xhxh); medium is the heterozygous condition. given two parents: ttccssxhxh x ttccssxhy how many different gametes could be formed in the female cat with respect to these four traits? how many phenotypes are possible in the offspring from this mating?

Plants consume most of their carbon from a. the soil b. the water c. the roots d. the air

Which two criteria must be met before scientist can use radiocarbon dating? explain your answer