While health care, world-wide, continues to improve, there are two health-related reasons for the projected decline in world population. they are

*will mark brainliest* which of the following best describes a viral infection, such as the common cold? a. virus grow and develop in the body. b. virus are living organisms. c. viruses require host cells in the body. d. viruses can be treated with antibiotics.

Which is not a characteristic of the animal kingdom? a. they include both vertebrates and invertebrates b. their skin is covered with hair or fur c. they are heterotrophs d. they are eukaryotic

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