A scientist has two samples of mercury. Both samples are liquid, shiny, and toxic to humans. Why do the samples most likely have similar properties?

A. They are made of a metallic fluid.

B. They are made of the same type of atoms.

C. They have the same mass.

D. They have the same weight.

Environmental differences within ecosystems are generally caused by

In this experiment, the was intentionally manipulated. it is the independent variable. the dependent variables that were measured were the

Adescription of a type of bio biotechnology (genetic engineering, cloning, or artificial section) one benefit or one risk for the individual (based on whether you are for or against it) one benefit or one risk for society (based on whether you are for or against it) one benefit or one risk for the environment (based on whether you are for or against it)