In general, areas on earth that are dominated by subtropical high-pressure cells a. consistently receive average amounts of rain throughout the year b. are mostly rain forests c. are extensively deserts that receive little rainfall

Use the drop-down menu to match the following definitions to the corresponding terms. the total variety of organisms that live in the biosphere a group of organisms that breed and produce offspring that can breed all of the biotic and abiotic factors in an area

Which enzymes break down carbohydrates?

People with one sickle cell allele are not likely to get malaria. what is this an example of?