Which are characteristics of leeches? Check all that apply.

They are parasitic.

They are a type of roundworm.

They have setae.

They have medical uses.

They are segmented.

Are cells based on the size of the organism?

If your air conditioner broke during a hot summer day, could you keep your kitchen cool by opening the refrigerator door? Explain why or why not.

Fossils provide clear evidence that evolution has occurred. True False

Both chloroplasts and mitochondria are like in that they both have - blank - membranes and their own - blank -.

Why are there increasing levels of biological containment procedures? what level of biological containment will be necessary to complete the experiments in this manual?

How are active transport and facilitated diffusion different how are they similar?

What is the function or the role of mitosis in a cell that is about to divide?

The classical laboratory experiments performed by urey and miller to explore the necessary conditions for the production of organic molecules (the building blocks of living things) in the solar system involved the passing of electrical discharges

Which of the following is not required by animals to control body temperature? A. Animals must be able to conserve heat when temperatures drop. B. Animals must be able to get rid of excess heat when temperatures increase. C.

What is the importance of guard cells?