Which factor does not affect the strength of a toxin? - Type of toxin
- Temperature of toxin
- Mechanism of exposure
- Length of exposure

Color blindness is a recessive trait. the gene for color blindness is on the x chromosome. the family tree below shows the trait of color blindness. the only unknown is the mother in the first generation

The pharynx is the structure in the body that serves as a pathway of both air and food. how does the body make sure that food does not get into the lungs? the salivary glands secrete enzymes that pull food out of the air pathway. the small intestine pushes the air out of the digestive system. the pancreas breaks down food in the air pathway. the epiglottis closes the air pathway so that food will not enter it.

What is the term for the two sets of chromatids formed in the parent cell a.haploid b.diploid c.gamete d.tetrad