Streptococcus pneumoniae is a kind of bacterium that what?

a. causes infections in humans.

b. causes several types of cancer.

c. supports the human immune system.

d. aids in the digestion of food

Open dumping in landfills was outlawed in many states because of? Methane explosion Foul odor Their unsightliness Groundwater pollution

Consider a population of killer whales. The gene pool of this population would only contain alleles harboring beneficial or neutral mutations, as deleterious mutations are efficiently eliminated from the gene pool of a species. FalseTrue

The poison dart frog can have bright green, red, blue, or yellow skin that secretes a poisonous substance when it feels threatened. Which type of adaptation does this describe? Mimicry Warning coloration Camouflage Chemical defense

How do plant structures such as roots, stems, and leaves ensure a plant's survival

Which substance acts as a buffer in natural water? A. Sulfuric avid B. Distilled water C. Decomposing animal matter D. A pH indicator

What will most likely happen to a healthy male who has an excess of testosterone

A woman reports to the emergency room in january with her cyanotic (blue-colored) 10-month-old child. the mother reports that the infant has had a runny nose, fever, and slight cough for a day and has had increasing trouble breathing.

What type of virus is HIV?

Tests reveal that a client has phosphatic renal calculi. the nurse teaches the client that the diet may include which food item?

State whether each of the following statements is true or false. 1. Biochemistry is the study of the vital force that distinguishes organic compounds from inorganic compounds.