How did Mendel make the F, generation for his experiments?

A. He crossed two pure lines.

B. He crossed only round seed plants

C. He removed all the smooth seed plants.

D. He crossed two F2 generations.

Cells tend to have a relatively small and uniform size. why aren’t cells larger?

Many organs are involved in the processes of keeping the blood and the body clean. when poisonous or harmful substances are in the blood, they are absorbed by the and released in a less harmful form. when wastes are present in the blood, they are filtered out and removed from the body by the

The carbon cycle is best defined as a process in which a. carbon changes from inorganic forms to organic forms and back b. carbon is changed into other elements such as oxygen or nitrogen c. carbon is continually created from the sun’s energy by plants d. carbon is consumed and regenerated from other elements such as oxygen and nitrogen