The scientist most likely observed which fungus?
A scientist observed a fungus and recorded what she saw:

a yeast, because it contains cell walls orange in color
b rust, because it has tightly arranged hyphae found on the surface of a leaf
c yeast, because it has tightly arranged hyphae tightly arranged hyphae
d rust, because it contains cell walls contains cell walls

Animal bodies (and even plant bodies for that matter) are complex enough that life couldn't exist without enzymes. enzymes are usually large, complex biological catalysts that are expensive to make. enzymes speed up the rate of chemical reactions without being used up during the reaction (they can be reused many times). they are highly specific in the reactions they regulate. knowing what enzymes are and how they function, why does this explain why complex life forms could not exist if there were no enzymes.

Compare the composition of the moon's surface with the composition of the earth's surface.

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.