Answer:
In sexually reproducing organisms, each parent contributes half of the genes acquired (at random) by the offspring. Individuals have two of each chromosome and hence two alleles of each gene, one acquired from each parent.
Explanation:
Hope this helps you :)
Answer:
Oxygen.
Explanation:
Gas exchange between Alveolar spaces and capillaries. Respiratory system is to move two gases: Oxygen and carbon dioxide.
The following stage in the behavioral modification model is preparation
For push-up you can say, shoulder taps (you tap each shoulder while in push up position), plank and for chest lifting weights i have no clue on chest stretches
A cold is pretty harmless, when you have antibodies to fight the disease.