B. By coughing and sneezing
One function is to help regulate digestion.
Your maximum heart rate is about 220 minus your age. In the age category closest to yours, read across to find your target heart rates. Target heart rate during moderate intensity activities is about 50-70% of maximum heart rate, while during vigorous physical activity it's about 70-85% of maximum.
Hope this helps!
Explanation:
Half. Each gamete provides one set of chromosomes, or DNA material. All zygotes have 2 sets of chromosomes, one-half from the mother's gamete (egg) and one-half from the father's gamete (sperm).
