Suggest some reasons for heartwood being preferred to sapwood for making furniture?

Study the diagram of a desert food chain . what would most likely happen if the kangaroo rats were killed off and removed from the food chain ?

An ecologist is studying the effects that a population of predators is having on a population of a prey. he used data from the field to produce this graph. which conclusion can draw from the graph?

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