The separation of the sister chromatids occurs in:

la - anaphase I

b - metaphase I

c - anaphase I and anaphase II

d - mitotic anaphase and anaphase II

(jusitfy your answer)

Which characteristic do plants, people, and flatworms share? They all use cellular respiration to obtain energy. They all make their own food. They all ingest food.

Name a type of cell that relies on coupled transport to perform its functions

Where is the chloroplast located?

What did Darwin's observations and accompanying questions allow him to propose as a hypothesis?

5. Which of these events might lead to the modification of a scientific idea? A. A scientist uses a computer to teach a scientific concept to students. B.

Ozone hole refers to ... ? A. hole in ozone layer B. decrease in the ozone layer in troposphere C. decrease in thickness of ozone layer in stratosphere D. increase in the thickness of ozone layer in troposphere

Chemicals used in chemotherapy treatments to fight cancer can also harm cells in hair follicles and bone marrow. What characteristic do these cells most likely share with cancerous cells? A.) They form tumors. B.) They spread through the blood. C.

Binary fission is a process through which A. all cells divide. B. eukaryotic cells divide. C. prokaryotic cells divide. D. cellular DNA is cut in half.

Describe how this algal bloom might alter the local nitrogen cycle in that ecosystem.

What are the reactants in the equation for cellular respiration?