How do veins
return blood to the
heart?
A. using simple and
facilitated diffusio...
Biology, 16.03.2022 01:00, annalisamorris0
How do veins
return blood to the
heart?
A. using simple and
facilitated diffusion
B. using osmosis and
simple diffusion
C. using capillaries and
arteries
D. using valves and muscle
contractions
Answers: 1
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Check all that apply diatoms are marine algae that have a shell made of silica, what are some of the uses of the silica shell after the diatoms die? 1.the shells make up the diatomaceous earth used in filters 2.it can be used as an ingredient in abrasives 3.they are used in food products 4.the shells can be used in some insulating materials
Answers: 2
Biology, 22.06.2019 00:30, savannnab1890
According to the cladogram, which organisms have roundworms as a common ancestor?
Answers: 1
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