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An enormous rifting occurred causing massive floods of basaltic lavas and the release of large amounts of gas. This is a thought to have been the cause of which mass extinction

Compare the sex cells produced by meiosis to the parent cell. why is the difference between the sex cells and parent cell important?

Which material found in the digestive system aids digestion and also kills pathogens?

31. What are the chances that a puppy will have a spotted coat, if his mother is solid and his father is heterozygous for a spotted coat?

Compare a natural meadow with a cornfield in terms of biodiversity. in your answer, be sure to address the: • number of species that live in each habitat; • number of interactions among species that occur in each habitat;

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?