which types of molecules are used both for energy storage and as structural material?
choose all answers that are correct.
a.
lipids
b.
proteins
c.
carbohydrates
d.
nucleic acids

What occupation did muhammad have before the first revelation

Environmental differences within ecosystems are generally caused by

Select the situation bellow that would produce a total displacement of zero. a. a trip to the moon and then to mars b. a horse galloping from one end of a field to another c. the criss-crossing path of a bug as it flies from flower to flower d.a round-trip ride to school and back