Example of biological magnification include Group of answer choices DDT in the environment which caused an increase in bird population DDT in the environment which leads to bird populations declined with thinner eggshells over farming using DDT which leads to a depletion in the soil An increase in bird seeds with DDT which leads to an increase in the size of birds

the element that provides strength to the exoskeletons of clams and oysters is phosphorus.

this is so because calcium carbonate is the main component in the shells. calcium carbonate is strengthened by phosphorus.

explanation:

some scientists like gregory adcock agree with thorne's theory of regional continuity.

others, like chris stringer and ian tattersall, believe thorne's results may be contaminated or misinterpreted.