Limestone is a type of rock that forms when igneous; magma cools igneous; lava cools sedimentary; calcium carbonate precipitates, or organic material containing calcium carbonate accumulates in a water environment sedimentary; broken fragments of rock are deposited in a water environment and are then cemented together.

Forensic anthropologists: a. apply anthropological techniques to legal matters. b. are primarily concerned with the recovery of material culture remains. c. examine the relationships between medical treatment and culturally determined views of disease. d. study disease and trauma in ancient populations. e. study nonhuman primates.

Which member of the following food chain will be least affected by ddt, a pesticide water pollutant, if bio-magnification is occurring? algae> zooplankton> crayfish> leopard frog> large mouth bass

The bacteria inside a tube worm would be analogous to what organism in the ocean ecosystem near the waters surface? a. photosynthetic algae b. shrimp c. clown fish d. parasitic lamprey