Consider the model of the food chain. imagine there is a herbicide poison spill and all the grass is killed. how will this influence the food chain model? a) the grasshoppers will die out. b) all of the consumers will decrease. c) the tertiary consumers will increase. d) the grasshoppers will find some other food source.

Connection compare and contrast genetic engineering to the process of natural selection. select all statements that are true.

Graded assignment lab report answer the questions below. which combinations of substances resulted in a chemical change? for each metal that participated in a chemical change, write the type of metal it is, based on your examination of the periodic table. were there any metallic compounds that did not react with either the acid or the base? write the type of metal, based on your examination of the periodic table. make a general statement about the reactivity of the metals in this experiment.

What is the role of dna ligase in the elongation of the lagging strand during dna replication?