Biology, 27.03.2020 01:51 meleajhart
Although primates are widely distributed, biogeographers have debated the origin of South American monkeys. Two distinct hypotheses have been offered: Vicariance hypothesis: South American and African monkeys began to diverge when South America broke off from Africa. Dispersal hypothesis: Sometime after it broke from Africa, South America was colonized by dispersing old-world (African) monkeys that eventually evolved to become the new-world monkeys of today. Which of the following, if true, would allow you to reject one of the two hypotheses?
a. If fossil evidence places new-world monkeys in South America well before South America separated from Africa, you must reject the dispersal hypothesis
b. If South America separated from Africa about the same time that South American monkeys diverged from African monkeys, you must reject the dispersal hypothesis
c. If the separation of the two continents occurred well before the evolution of the common ancestor of African and South American monkeys, you must reject the vicariance hypothesis.
Answers: 2
Biology, 21.06.2019 17:10
Ryan rears sheep for their wool. recently the quantity of wool that ryan gets has diminished. this is because the new sheep are not that wooly. ryan should add which nutrient to their feed so that the sheep becomes more wooly? a.cornb.ironc.cottonseedd. vitamin a
Answers: 1
Biology, 23.06.2019 01:30
Which describes a difference between cephalopods and gastropods? cephalopods have a water vascular system, and gastropods have an open circulatory system. cephalopods live only in ocean environments, and gastropods live in a variety of environments. cephalopods have a simple nervous system, and gastropods have a complex nervous system. cephalopods are the largest group of mollusks, and gastropods are the smallest group of mollusks.
Answers: 2
Biology, 23.06.2019 04:31
Half of the polar bears in a small population die. this population may experience changes due to gene flow mutation genetic drift natural selection
Answers: 1
Although primates are widely distributed, biogeographers have debated the origin of South American m...
French, 25.05.2021 18:40
Social Studies, 25.05.2021 18:40
Mathematics, 25.05.2021 18:40
Mathematics, 25.05.2021 18:40
Computers and Technology, 25.05.2021 18:40
Chemistry, 25.05.2021 18:40
Mathematics, 25.05.2021 18:40
Mathematics, 25.05.2021 18:40