Why do some leaves change color (red, yellow, orange, etc.) in the fall? the chlorophyll molecule breaks down and other pigments now become visible. the chlorophyll molecule is modified to absorb different wavelengths of light. cold weather denatures the chlorophyll molecule, and it begins to reflect different colors. when leaves die, the chlorophyll molecules are no longer visible?

The is an estimate of the fewest number of organisms a population needs to avoid extinction. this measurement will most if the number of offspring each female in the population produces increases. if the population's this measurement will most likely increase. 1 population density, minimum viable population, carrying capacity 2 decrease, be unaffected, increase 3 death rate increase, dead rate decrease

Why do mountaineers become breathless as they reach high altitudes

In cattle a single gene with two alleles determines fur color the fur can be red white or roan roan fur has both red and white hair which of the following statements is true a the allele for roan fur color is dominant over red and white fur color b the allele for red fur color is dominant over white and roan fur color c the roan and white alleles are expressed independently of the other d the red and white alleles are expressed independently of each other