The DNA in a human cell weighs approximately 2.0 x 10-12 grams. Calculate how many cells you would need to use to isolate 1 mg (milligram or 1x10-3 grams) of DNA, assuming you can get the entire DNA out of a cell. Show your work.

Ruth has a garden in front of her house. She waters the plants every morning. After some time, the water from the plants and soil evaporate. What is the correct term used for describing this phenomenon? A. precipitation B. condensation C.

A balanced polymorphism exist through disruptive selection in seed cracker finches from Cameroon in which small and large billed birds specialized in cracking soft and hard seeds, respectively.

Extension and rotation of the vertebral column occurs by

Explain the importance of the dipole nature of water molecules to the chemistry of life

What do gas giants atmosphere contain

Explain why the fact that invasive species did not co-evolve with the native species unbalances an ecosystem.

23 - You work for a furniture moving company. Your boss sends you to the hardware store to buy tie down rope. He tells you to buy the best deal. What is the best deal on rope? 10 feet for $7.00 20 feet for $13.00 50 feet for $28.00 100 feet for $57.

How does an atom become a positive ion?

The one-celled eukaryotic organisms above are often found in freshwater ponds. What is one characteristic they all have in common? A Nucleus B Cilia C Flagellum D Pseudopodia

This process is used for growth repair it is also a form of reproduction in asexual organisms