Why do hormones cause changes only in specific body organs? a. a hormone is carried to a specific location by tiny tubes b. a hormone interacts only with target cells, which fit together with that hormone. c. a hormone is produced only in the location where it is needed. d. a hormone works only through negative feedback.

How do antiviral drugs work? in your own words.

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.

What are the 3 types of artificial cloning