Iam:
double stranded
found in the nucleus
have four nitrogen bases
contain deoxyribose sugar
contain thymine instead of uracil
what important molecule am i?

a)
dna

b)
rna

c)
enzyme

d)
protein

Liquid water turns into water vapor at which step in the water cycle? a. precipitation o b. water run off c. evaporation d. condensation

African penguins, which inhabit the coasts of southern africa, were classified as an endangered species in 2010. two significant threats to their survival are ecosystem damage from oil spills and overfishing by humans. overfishing depletes the food supply of african penguins. the best method to reduce the threat of overfishing would be to . the risk of oil spills could be reduced by increasing the use of , which should oil consumption. if an oil spill does occur, could be used to remove the oil so the ecosystem may more quickly recover.

What best describes emerging scientific ideas