Biology, 11.06.2021 17:40 Lucialari4345
9. A positively charged glass rod touches a neutral comb. Draw a diagram of the objects before
contact and a second diagram of the objects after contact. Show charges and which way any
electrons moved.
Answers: 1
Biology, 21.06.2019 18:30
The gene that causes sickle-cell disease is present in a higher percentage of residents of sub-saharan africa than among those of african descent living in the united states. even though this gene causes sickle-cell disease, it also provides some protection from malaria, a serious disease that is widespread in sub-saharan africa but absent in the united states. discuss an evolutionary process that could account for the different percentages of the sickle-cell gene among residents of the two regions.
Answers: 3
Biology, 22.06.2019 04:00
The nervous system interacts with the endocrine system by a. using hormones as connections b. sending nerve impulses directly to glands c. using neuroendocrine cells as connections d. sending neurotransmitters directly to neurons
Answers: 1
Biology, 22.06.2019 05:50
Which of the organisms listed below performs nitrogen fixation? a. legumes b. plants c. bacteria d. fungi
Answers: 2
Biology, 22.06.2019 06:40
Migration is a. the movement of organisms from a native location to a foreign location b. the movement of organisms from a foreign location to a native location the movement of organisms from their water supply to their food supply d. the seasonal movement of organisms between locations c. select the best answer from above
Answers: 1
9. A positively charged glass rod touches a neutral comb. Draw a diagram of the objects before
cont...
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