Classify which is specific defense or nonspecific defense:

- skin
- macrophages
- bacteria
- mucous
- fever
- b cells
- t cells
- antibodies

Non-specific: skin, mucous, macrophages, fever
Specific: B cells, T cells, antibodies

The correct classification would be as follows:

- skin
nonspecific

- macrophages
specific

- bacteria
specific

- mucous
nonspecific

- fever
nonspecific

- B cells
specific

- T cells
specific

- antibodies
nonspecific

Hope this answers the question. Have a nice day.

P = 3.92 10¹⁰ W

Explanation:

The power is data by the expression

         P = W / t

the work of a force is

         W = F. y

the bold ones represent vectors. In this case the displacement is vertical upwards and the vertical forces upwards, therefore the angle is zero and the cos 0 = 1

          W = F y

we substitute

          P = F y / t

          P = F v

as the body rises at constant speed the acceleration is zero and from the equilibrium condition

            F -W = 0

            F = mg

we substitute

           P = m g v

let's calculate

           P 1.00 10⁹ 9.8  4

           P = 3.92 10¹⁰ W