Biology, 23.06.2019 23:30 denarreiahspen5921
(need healp asap 21pts ) what can cause attention deficit hyperactivity disorder (adhd)? a. low levels of gamma-amino butyric acid b. low levels of serotonin c. low levels of endorphins d. low levels of acetylcholine
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Biology, 22.06.2019 02:20
Humans are believed to have evolved in coastal regions in east africa. the region had an abundant supply of fish for early humanoids to eat. when scientists analyze the fads gene they see an interesting pattern. people whose families have lived in this area of east africa for generation show a high level of diversity in alleles for the fads gene. conversely, people whose families had migrated inland a moderate distance from sources of fish showed a much lower diversity for fads gene alleles. additionally, the fads alleles found in people whose family has lived inland for generation are almost all gene alleles which produce fads proteins with a high level of function and activity. how do anthropologists explain this?
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Biology, 22.06.2019 03:00
What happens during interphase? (1)the nucleus grows to its full size. (2)the cell grows to its full size. (3)the nucleus divides into two nuclei. (4)the cell divides into two cells.
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Biology, 22.06.2019 10:30
Natural selection changes allele frequencies because some survive and reproduce more successfully than others.
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Biology, 22.06.2019 11:30
Plz quick a natural resource that is replaceable through a cycle in nature or sustainable practice is called a? the subject is science
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(need healp asap 21pts ) what can cause attention deficit hyperactivity disorder (adhd)? a. low lev...
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