The author who used his experiences of the gold rush in california and alaska in his sometimes grim short stories and novels.
a. ernesto galarza
b. manuel rojas
c. langston hughes
d. jack london

An enzyme lowers the energy of activation. what does that mean?

Ineed to know why d is the correct answer asap

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?