The graph shows the rate of malignant melanoma for the years 1973–2004. Based on the information in the graph, which conclusion can be drawn?
More cases of cancer were reported over time.
More people were out in the sun over time.
Women use sunscreen about twice as often as men use sunscreen.
The rate of skin cancer has increased in both men and women.

In a lab, scientists grew several generations of offspring of a plant using the method shown. what conclusion can you make about the offspring? a. they formed from meiosis and mitosis. b. they have half the number of chromosomes as their parent. c. they have low genetic variability among them. d. they will be able to reproduce only after they grow flowers.

Which of the following factors would not contribute to allopatric speciation? a) a population becomes geographically isolated from the parent population. b) the separated population is small, and genetic drift occurs. c) the isolated population is exposed to different selection pressures than the ancestral population. d) different mutations begin to distinguish the gene pools of the separated populations. e) gene flow between the two populations is extensive.

On his trip to the galapagos islands, darwin determined that animals on the islands