Explain how many of the macromolecules in your body come from food you eat.

Why are olfaction and gustation called chemical senses? Neither one has sensory receptors that respond to molecules in the food we eat or in the air we breathe. They are unrelated to biological senses.

What is the difference between the type of smog experienced by cities in the eastern United States and that found in Southern California?

Changes in physical structure, function, or behavior that allow an organism or species to survive and reproduce in a given environment.

A roller coaster with a potential energy of 235,200 J sits at the top of a 30 m high hill. What is the mass of the roller coaster? (Formula: PE = mgh) 800 kg 7.840 kg 8,000 kg 78,400 kg

How can pollution affect marine life?

When brown iodine is exposed to starch it turns dark purple. In an experiment, you placed a cornstarch and glucose solution within a small plastic bag. Next, you placed the bag in a beaker with water and 10 drops of iodine.

Name classification of matter used in 1800

Which of these is a benefit of using fossil fuels

Thirty-six colonies grew in nutrient agar from 1.0 ml of undiluted sample in a standard plate count. How many cells were in the original sample?

Why is it difficult for most chemical reaction in living things to occur without enzyme?