8  p o i n t s! which of the following is a characteristic of a scientific experiment? its results always support the hypothesis. it shows cause and effect relationships. it is performed in nature. it can be performed only once.

List the advantages and disadavantages of the switch from persistent chlorinated hydrocarbon pesticides (such as ddt) to nonpersistent organophosphate pesicides. have the benefits of the switch outweighed the disadvantages? explain.

Does masterbation affect height growth or loss of growth hormone?

Which describes a grizzly bear’s habitat?