The existence of pangea is supported by evidence that similar fossils appear on differen continents. how does this observation support the existence of pangea? 1) it shows that fossils can be relocated. 2) it shows that organisms can migrate across oceans. 3) it shows that similar animals can develop in different climates. 4) it shows that the continents used to be closer together.

Describe the response the kidneys have to dehydration and excessive water intake. what happens to the concentration of urine in each case ?

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.

During the winter, this species of fox has white fur, but in the summer, it has brown fur. what environmental change may have lead to this fox's fur color? snow cover increase in sun's brightness volcanic eruption global warming