An ecologist catches 100 frogs from a pond, marks them, and releases them back into the pond. after a few days, another 100 frogs are captured and 10 have the marks on them. how many frogs are in the pond?

What is trace evidence

Which of the following is an accurate distinction between Bacteria and Eukarya? A. Bacteria do not have a lipid membrane surrounding their cells, and Eukarya do. B. Bacteria undergo sexual reproduction, and Eukarya undergo asexual reproduction. C.

The process by which sperm from one flowers pollen fertilizes the eggs in a flower of a different plant is

What are 3 ways to get an infectious disease?

Which of the following is true of enzymes? a. An enzyme is consumed during a chemical reaction. b. An enzyme is converted to a product during a chemical reaction. c. An enzyme lowers the energy of activation required for a given reaction. d.

True or False? An environment containing no calcium is the best for brine shrimp egg hatching.

Mendel's observations of pea plants contributed to the study of modern genetics. use these terms gene, genotype, dominant, recessive, phenotype, allele, trait, in your explanation?

What is the process of the ocean floor adds new material to its ocean floor called?

If you were in a boat as Hurricane Sandy passed overhead on October 28 at 4am, at what altitude would Polaris appear in the sky from your location (32°N and 73°W) ?

Which instrument would provide the most detailed information about the internal structure of a chloroplast