Which plant is an example of an annual weed?
Common burdock
O Queen Anne's lace
Crabgrass
Bull thistle

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

Cell specialization occurs by the process ofa. reproductionb. differentiationc. maturationd. growth

Which of the following is not a food produced in rainforests? a) coffee b) cocoa c) avocados d) wheat