The time when life began at what era cenozoic era c. mesozoic era b. paleozoic era d. cretaceous period

What feature of cell theory is best demonstrated in the image

Anita thinks that she has heterozygous alleles for red hair.if she is correct, which of these diagrams best illustrates anitas alleles pf red hair

Plz fast biotechnology is a growing field of applied biology. many crops such as corn have been engineered to be resistant to herbicides. therefore farmers can spray these chemicals to kill weeds growing near the crop without worries of killing the crop itself how does this type of biotechnology work? a. by changing the genetic make up of the crops. b. by causing the crops to kill the weeds. c. by changing the type of crops used. d. by changing the location of the crops.