Biology, 03.02.2020 15:46, soupsah8166
Why is the blood that flows from the lungs toward the heart a brighter red than the blood that flows the other direction?
the presence of pigments found in the lungs makes it bright red.
the presence of oxygen–bound hemoglobin makes it bright red.
the presence of carbon–dioxide–bound hemoglobin makes it bright red.
Answers: 1
Biology, 21.06.2019 19:10, daeshawnc14
What have we learned from fossil evidence about evolution? a) it is an abrupt change. b)the process is observable. c) it takes place during one lifetime only. d)the most complex traits are always selected.
Answers: 2
Biology, 22.06.2019 04:50, haileyglowiak8183
Consider the classification levels of a human. eukarya ,animalia ,chordata ,mammalia ,primates, hominidae ,homo ,sapiens .which is the most specific taxonomic level in the classification system above? a sapiens b homo c hominidae d primates
Answers: 1
Biology, 22.06.2019 12:30, nyiapower9705
Which term most precisely describes the cellular process of breaking down large molecules into smaller ones? a) catalysis b) metabolism c) anabolism d) dehydration e) catabolism
Answers: 1
Why is the blood that flows from the lungs toward the heart a brighter red than the blood that flows...
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