The best answer to fill in the blank is "multilayered membrane."
The answer is fundamental niche
Blood first enters the heart's right atrium. A muscle contraction forces the blood through the tricuspid valve into the right ventricle. When the right ventricle contracts, blood is forced through the pulmonary semilunar valve into the pulmonary artery. Then it travels to the lungs
Your Question;
<span>What are 3 abiotic factors where emperor penguins live?
My Answer;
First, we need to know what "abiotic" means. Abiotic non-living, now that we know what "abiotic" means we can determine three abiotic factors.
One: Snow
Two: Wind and Water ( These are two different ones but I wanted to put it as one)
Three: Soil/Dirt.
Hope I helped,
♥ Sir Chub-Chubs.
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