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Unit about 200 million years ago, earth's continents were joined as a single land mas called: A) Glossopteris B) Pangaea C) Asia minor D) Cynognathus

Why are phytoplankton important to this ecosystem?

How is it possible that over 20 million living organisms on the planet are made up of only 5 types of nucleotide based arranged in long chains?

Which type of tissue performs the role of signal conduction in the body? 1) connective tissue 2) epithelial tissue 3) muscle tissue 4) nervous tissue

Weather is unaffected by continental shifting. true or false

Which of the following structures does a flatworm expel solid waste

What is the main function of fruit

Describe logistic population growth from a small population to a large one. be sure you talk about the population growth rate (the numbers of individuals added to the population over time) and carrying capacity.

What are the key elements of cell theory? chose all that aply A. All living things are composed of one or more eukaryotic cells. B. Cells arise only from other cells. C. The cell is the basic unit of life. D.

How is polar molecule different from a non polar molecule