Scientists were able to determine the age of the earth from rock samples that were analyzed. What technique was used to do this

As described in Investigating Life 20.1, scientists found that the range of the alpine chipmunk has shifted about 500 meters up in elevation, leading to isolated subpopulations on individual mountaintops.

Define meiosis. Describe the main stages in the process.

Animal cells and plant cells contain some but not all of the same structures. Which of the following would be found in a plant cell but not in an animal cell? A. Cell Membrane B. Cell Wall C. Mitochondria D. Nucleus

Fungi are being used to kill gypsy moths. a. True b. False

Anna applies a force of 84n Nto lift her baby nephew 2.0 m. How much work does Anna do? Answer

Which mineral is important for carrying o2 in the blood?

Deanna explains to Wesley the different types of nitrogen in the nitrogen cycle. Choose the sentences that she includes in her explanation. Select all that apply. A. Bacteria fix nitrogen from ammonia gas. B.

What are three key factors that contribute to a female primate's success at feeding?

You breathe in more oxygen than you breathe out. And you breathe out more carbon dioxide than you breathe in. What type of change is oxygen turning into carbon dioxide? A. physical only B. chemical only C. physical and chemical

What is ATP? A: the energy of moving electrons B: an energy-rich substance that cells need to survive C: an acidic substance that makes muscles cramp D: an organism that uses fermentation to produce energy