Answer:
diapedesis
Explanation:
Leukocytes can come out of the bloodstream and the process of their emigration is called diapedesis. In diapedesis, leukocytes roll along the endothelium. These cells stick to and then squeeze between endothelial cells. Specific adhesion molecules assist the leukocytes in sticking to the endothelium. For example, selectins of endothelial cells stick to carbohydrates on the surface of neutrophils. The integrins of neutrophils stick them to the endothelium and assist in diapedesis.
Answer:
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Explanation:
Answer:
Each organism plays a particular role in its ecosystem. A niche is the role a species plays in the ecosystem. In other words, a niche is how an organism “makes a living.” A niche will include the organism's role in the flow of energy through the ecosystem.
Explanation:
Answer:
A metalloid is used because it is a semiconductor and can become more conductive when more light shines on it. The most likely materials are crystalline silicon, amorphous silicon, gallium arsenide and organometallics (soluble platinum).
Explanation:
