Members of the genus homo (particularly homo erectus) were the first hominids to migrate out of africa. according to the text, the most probable reason for their leaving was:
a. their "reproductive success" (better adapted, they reproduced more, resulting in over- crowding in africa, forcing some populations out)
b. natural human curiosity about other places
c. seeking more tropical climates (year-round growing seasons) for their plan-based diets
d. they were out-competed by the australoithecines
e. none of the above (just like the australopithecines, they never left africa)

In german cockroaches, curved wing (cv) is recessive to normal wing (cv+). bill, who is raising cockroaches in his dorm room, finds that the frequency of the gene for curved wings in his cockroach population is 0.6. in his friend joe’s apartment, the frequency of the gene for curved wings is 0.2. one day joe visits bill in his dorm room, and several cockroaches jump out of joe’s hair and join the population in bill’s room. bill estimates that, now, 10% of the cockroaches in his dorm room are individual roaches that jumped out of joe’s hair. what is the new frequency of curved wings among cockroaches in bill’s room? 0.69 0.4 0.5 0.31 0.20

Time ! for a smell to begin the process of registering in your brain, first you must a) inhale odor molecules into the nasal cavity b)transduce scent chemicals c)have a scent to inhale d)all answers can work

The mammal pictured below is a silvery mole rat. which statement is an inference based on the picture? the animal is ugly. the animal has hairless feet with sharp claws. the animal has prominent upper and lower incisor teeth. the animal likely has poor vision since its eyes are so small.