Why are desert plants often widely spaced? A)
competition for carbon dioxide
B)
competition for nutrients from the soil
C)
competition for sunlight
D)
competition for rainwater
E)
competition for land

Which of the following is a cost of urbanization? a-cities can provide a high standard of living. b-cities are hubs of entertainment and education. c-paving over land changes the environment. d-job opportunities are greater in urban centers.

The allele for curly hair is incompletely dominant. if a mother is homozygous for curly hair and the father is homozygous for straight hair, what percentage of the offspring will exhibit characteristics of both parents? 25 percent 50 percent 75 percent 100 percent

The activity of the modern sample is 1.10 bq . how long does that measurement take?