Agroup of scientists is developing a new chemical compound. they want to test its effects on an aquatic ecosystem using a nearby ocean bay. they enclose a region of a bay with an insulated covering to create an isolated system in which to do their experiment. predict what would happen to living organisms in this isolated experimental system.

Plz genetic engineering can be applied to many fields including medicine and agriculture. which of the following is a medical application of genetic engineering? a. giving crop plants recombinant dna so that they would be resistant to herbicides. b. examining a persons pedigree to determine whether they can carry a gene for a genetic disease. c. analyzing a persons dna to see how closely they are related to another person. d. certain genes into bacteria so that they will produce a needed medicine.

Which description provides the best objective summary of the article in the passage?

Which statement is the best summary of the model? a-a series of aerobic and anaerobic reactions take place in cells b- the sun's energy moves through trophic levels in a food chain c-light energy is converted into stored chemical energy plants.d- food molecules are broken down in the cells if living things.