Although you get wet while swimming, a tough protein within the skin prevents it from soaking up moisture like a sponge. This substance is: A) carotene B) hemaglobin C) keratin D) collagen

The process of cell division that produces copies of cells with 46 chromosomes each is called?

Why is the making of glass a chemical change

Why does studying pollutants in dolphins give a better representation of pollution impacts on an ecosystem than studying marsh grasses?

According to symbolic interactionism, what is the effect of social stratification on the lower classes of society? A. Motivation to move up in life B. Motivation to rebel against the system C. Low self esteem D. High self esteem

The most common and most commonly reported bacterial sexually transmitted infection (sti) in the united states is

The science of naming organism and putting them into classification group is?

What kind of energy does the TV have

What can stimulate cell regulators to increase cell reproduction? fragmentation hormones isogametes elongation

Suppose you dissolve 1 gram of solid glucose crystals in 1 kg of water to make a solution. Which calculation would be best to describe the concentration of glucose?

What is an organic acid.