DESCRIBE two differences that exist between plants and animals in relation to hormonal control?

In plants the hormone auxin can affect different parts of the plant in different ways: it promotes initiation of branch root primordia, stimulates cell division in the vascular cambium and inhibits the abcission of leaves. So we can see that different cells respond in different ways to the same plant hormone.

Hormones in animals that affect target cells in more than one organ have an effect on the target cells such that the same overall effect is accomplished. For instance PTH can affect target cells in the bone and kidneys with the same overall effect to increase calcium in body fluids.