Biology, 11.04.2021 22:40 BreBreDoeCCx
What factors caused the correlation between the reduction in skin pigmentation in humans and migration of human populations away from the equator?(1 point)
A) The exposure of human populations to predators only common to the polar regions caused them to adapt by camouflaging better with the environment.
B) The exposure of human populations to less UV light required a reduction in melanin to produce more vitamin D for healthier bones.
C) The exposure of human populations to new sources of food common to the polar regions caused changes in physiology that resulted in the production of less melanin.
D) The exposure of human populations to new diseases common to the polar regions interferred with melanin production causing lighter skin.
Answers: 2
Biology, 22.06.2019 02:40
What advantage does a crop that undergoes vegetative reproduction have over plants that start from the seed? 1points a they store nutrients. b they can travel farther. c they experience more genetic variation. d they only occur in high-resource environments.
Answers: 1
Biology, 22.06.2019 17:30
Astudent constructs a venom diagram to compare the organelle last in plant and animal cells which organelle should be listed under “both” in the diagram?
Answers: 1
Biology, 22.06.2019 18:30
There are few cells in the body that do not undergo mitosis: most somatic cells divide regularly, some more than others. take for example the cells that line the digestive tract. these cells must be frequently replaced because they are constantly eroded by the movement of food through the tract. what mechanism(s) is/are in place to ensure that these cells are exact copies of the mother cell
Answers: 1
What factors caused the correlation between the reduction in skin pigmentation in humans and migrati...
Mathematics, 03.11.2021 21:00
Geography, 03.11.2021 21:00
English, 03.11.2021 21:10
Mathematics, 03.11.2021 21:10
Health, 03.11.2021 21:10
Mathematics, 03.11.2021 21:10
Mathematics, 03.11.2021 21:10
English, 03.11.2021 21:10
Mathematics, 03.11.2021 21:10
Chemistry, 03.11.2021 21:10
Mathematics, 03.11.2021 21:20