Which of the following is likely to be researched by an environmental scientist? a. the effects of oil spills on marine animals b. the anatomy of of a platypus c. the chemical composition of a compound d. the velocity of a cheetah?

Why do some dna fragments move farther than others during gel electrophoresis? a. because their shapes are different b. because they are different types of molecules c. because the samples are different colors d. because their masses are different

The serengeti plains are part of the african savanna ecosystem and are home to a variety of different species of plants and animals. the serengeti plains experience a seven-month period of seasonal drought each year, during which the ecosystem receives only four inches of rain and the availability of some resources becomes very scarce. which type of limiting factors does the seasonal drought in the serengeti plains affect?

All phases of matter may have a fixed mass