Biology, 22.09.2019 07:10 Daveandemily17
25 ! a baby's first breath initiates a series of changes that includes which of the following?
a. the ductus venosus and ductus arteriosus both open.
b. the ductus venosus and ductus arteriosus both close.
c. the ductus venosus opens, and the ductus arteriosus closes.
d. the ductus venosus closes, and the ductus arteriosus opens.
answer and
Answers: 1
Biology, 21.06.2019 22:00
There are specialized producers that live in warm water vents deep in the ocean. these producers do not per-form from photosynthesis, but instead perform a similar process with iron and other chemicals. why do you think these producers use this process instead of photosynthesis?
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Biology, 22.06.2019 00:40
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Biology, 22.06.2019 12:30
Which of the following matches the organisms described with the correct domain? a. archaea--multicellular, eukaryotic organisms that do not have cell walls b. eukarya--single-celled and multicellular organisms, with a defined nucleus and a variety of nutritional sources c. bacteria--unicellular, eukaryotic organisms with cell walls that do not contain peptidoglycan d. bacteria--unicellular, eukaryotic organisms that always lack cell walls
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25 ! a baby's first breath initiates a series of changes that includes which of the following?
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