Answer:
stigma
Explanation:
Pollination occurs when pollen grains from the anther land on a stigma. After pollen grains land on the stigma, a pollen tube grows from the pollen grain, through the style, and into the ovary. Sperm cells inside the pollen grain travel down the pollen tube and into the ovary which contains the ovules.
It is only active at a pH of around 2 because that is around the same pH as the gastric juices in the stomach which is where pepsin is used to break down proteins.
The reason it's so important is because say you were doing push ups. Most people hold their breath will doing any exercise, and that is really bad for you. The reason why you have to exhale completely is because if you don't, you can/will pass out because your brain won't have enough oxygen to pass down for your muscles to work properly.
Answer: A. 50%
Explanation: If you create a Punnett Square and cross the 2 genotypes, out of the 4 possibilities, 2 will be CC and 2 will be Cc.