Study the following sequence of pictures and answer the questions given below: a. What happens to the plant nutrients in the soil after growing cereals repeatedly in the same field for many years?

b. Is it beneficial to grow a leguminous crop after a cereal crop has been grown?

In a relatively small iguana population the allelic frequency is tracked for three generations. webbing is a recessive allele; no webbing is the dominant allele. during one very rainy spring and summer, a flood washes all the iguana without webbed feet out to sea. by the fall, and three generations later, you have the gene pool seen here.

Why does it matter if osmosis is put into a “scab” or a “nosebleed? ” where would that leave him?

In this experiment, the was intentionally manipulated. it is the independent variable. the dependent variables that were measured were the