Populations of organisms, such as kudzu and the fire ant, that are introduced into a new habitat and reproduce very rapidly are known as species.

15 ! come and answer! a(n) is the general term for an infectious disease that has spread across a city, region, or country.

In a classic experiment using pea shape, mendel conducted two separate genetic crosses. in the first cross the parent plants were “true breeding” for pea shape; one had round peas ( r )and the other had wrinkled (r). the first cross produced a filial 1 generation of all round peas. in the second cross, mendel bred plants from the filial 1 generation. this cross produced different results. out of approximately 1000 plants, about 75% were round and 25% were wrinkled.

Human genes only differ by less than percent. a. 1 b. 6 c. 11 d. 16