Most___animals have developed circulatory systems to transport materials.

unicellular

multicellular

both a and b

none of above

Essential amino acids cannot be produced by the body so they must come from our diet. we can get them from eating foods that contain which bio molecule

What are three ways in which a fossil can be destroyed after it has formed

Which of the following is not an example of a SMART long-term education or training goal?

The most powerful flexor of the forearm at the elbow is the

What happens to the carbon in plants and animals when they die?

Which are examples of how technology has advanced scientific understanding? Check all that apply. using hot water to sterilize medical equipment transplanting a human organ into another individual inserting genes from one sheep into another cell to

Over the past 200 years the level of carbon dioxide in the atmosphere has A. Decreased slightly B. increased until recently, then decreased C. Increased steadily D. Stayed aboutbthe same

Determine the actual probability in percent, that each genotype occurred.

Some students have the misconception that during cellular respiration, the matter in glucose is somehow turned into energy. Consider that when we exercise, we burn glucose and also lose mass. Why does this happen?

True or False: A species is a group of organisms with distinct characteristics that matched others in a population.