Which of these most helps scientists analyze the amount of C02 present thousands years ago? A. acid rain
B. Igneous rocks
C. Ice cores
D. Tree saplings

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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

What is the approximate time of death of the body temperature is 29.4 degrees celsius

Which is an important function of normal flora? a. aid with bone marrow production. b. crowd out pathogenic bacteria. c. destroy digestive track pathogens. d. manufacture iron in the bloodstream.