The correct answer is A. Hope this helps!
Oil is an example for being such a low density to float on water
Answer:
During platelet plug formation, platelets begin to stick to: collagen with the assistance of von Willebrand factor. As a platelet plug forms at an injury site platelets become activated and their cytoplasm: degranulates as they release chemicals such as ADP and thromboxane A2.
Explanation:
Please mark me brainliest
a chemical substance produced and released into the environment by an animal, especially a mammal or an insect, affecting the behavior or physiology of others of its species.
To make amino acids which makes proteins