PLEASE HELP I WILL BE GIVING THE BRAINLIEST AND 15 POINTS
The woolly mammoth was a relative of...
PLEASE HELP I WILL BE GIVING THE BRAINLIEST AND 15 POINTS
The woolly mammoth was a relative of elephants that lived in the far north. There is much debate in the scientific community about what caused the extinction of mammoths. Climate models show that changing weather patterns stressed mammoth populations. Hunting by humans may have also reduced populations. The youngest mammoth remains on a continent are 10,000 years old.
Why did natural selection not cause mammoths to evolve new adaptations in response to environmental changes instead of becoming extinct?
A. There were too many offspring in the population.
B. There were too many different traits in the population.
C. There was not enough competition in the population.
D. There was not enough variation in the population.
Answers: 2
Biology, 21.06.2019 21:00, natasniebow
Epinephrine is a hormone released from the adrenal gland of the body, most often in a stressful situation. it is known as the "fight-or-flight" hormone. one way that it causes a response in the body is to activate receptors on muscle cells. where are these cellular receptors located? a. on the cell membrane b. in the nucleus c. on the cell wall d. around the mitochondria
Answers: 1
Biology, 22.06.2019 04:50, pineapplepizaaaaa
Describe the function of the endomembrane system? what organelles are involved?
Answers: 1
Biology, 22.06.2019 18:30, embersongracie
Which gas prevents the spread of fire and extinguishes it? is a type of compressed gas that prevents the spread of fire and extinguishes it.
Answers: 1
Mathematics, 27.08.2020 21:01
Social Studies, 27.08.2020 21:01
History, 27.08.2020 21:01
Biology, 27.08.2020 21:01
History, 27.08.2020 21:01
Mathematics, 27.08.2020 21:01