Which of the following is an example of a negative feedback mechanism? Select one:

A bird growing new feathers when the temperature decreases.

A dog walking in circles before it lies down.

A person developing a fever when they are sick.

A deer standing perfectly still when crossing headlights.

Aflashlight battery is an example of a) potential energy b) kinetic energy c) thermal energy d) solar energy

Select the correct answer. which mutation is harmful to the organism? a. a mutation allowing moths to camouflage better on blackened tree bark b. a mutation making staphylococcus aureus resistant to the antibiotic methicillin c. a mutation inhibiting human immunodeficiency virus from attaching to and entering the cell d. a mutation causing uncontrolled cell division e. a mutation giving plant leaves a bitter taste to discourage herbivores from eating them

When plants use sunlight to make food, the energy of sunlight is