A country's "income" is determined by how wealth is distributed there. The USA is considered a "high income" country, and Mexico is
considered a "middle-income” country. Even though cancer is more
common in wealthy countries, "about 70% of cancer deaths occur in
low- and middle-income countries.” If Mexico has fewer cancer cases
than the USA, then why do you think more people *die* of cancer in
Mexico?

the answer would be 2, if crossing over doesn’t occur 2 out of 4 of the daughter cells will have that allele.

hope this : )

thinking it would be d not too sure but i think it's right

since there are no options posted i'll give you a few examples.

a dolphin's flipper, bird's wing, cat's leg.

the sun's light combined with the visible wavelenghts form what is called ultraviolet radiation, which are the long waves at the end of a visible light sprectrum.

hope it ,

bioteacher101