Was 2006 an El Niño year? Why or why not?

Water is a good solvent and has a high heat capacity. Why are these two characteristics important for life?

Which of the following is an example of an organ? A) Stomach B) Brain cell C) Muscle Tissue D) Heart

A student draws a diagram of an E. coli cell, which is a type of bacteria. He draws and labels the cytoplasm, the cell membrane, DNA, and mitochondria. What is one problem with his diagram

Which kingdom contains organisms that are multicellular, heterotrphic, eukaryotic, and lack wall cells

A person is brought to the emergency room with constant high fever, extensive edema, low blood pressure, and petechiae. Which of the following may the person be suffering from? A. septicemiaB. infectious mononucleosisC. plagueD. brucellosisE.

Many functions in the body are controlled by special compounds. Which statements about these compounds do you think are true? Check all that apply. The body can make all of the compounds it needs. The body gets energy from some compounds.

The wide range of eye color indicates that eye color is

you are using magnets in the classroom. During science you keep hearing your classmates drop the magnents. What testable question can you develop based on this observation?

Darwin argued that the beak size and shape of Galapagos finch species was related to their a. body size. b. food source. c. time of reproduction. d. flight pattern.

What is an earth revolution, what shape is it's path, and how long it last