An enzyme is a large

A. nucleic acid molecule

B. polysaccharide molecule

C. carbohydrate molecule

D. protein molecule

Multiple crosses were made between true-breeding lines of black and yellow Labrador retrievers. All the F1 progeny were black. When these progeny were intercrossed, they produced an F2 consisting of 91 black, 39 yellow, and 30 chocolate.

What would the magnification of a specimen viewed with a compound light microscope that has an objective power of 10x and an ocular lens power of 5x? a.) 5x b.) 15x c.) 500x d.

All living things have certain characteristics. How many characteristics are used to describe living things? A. 3 B. 6 C. 9 D. 12

Seed dormancy is a survival mechanism that prevents seedhead formation when growing conditions for survival are at their best.

Which was a major cause for the entry of the u. s. into world war i? a) germany's invasion of belgium b) the desire to collect reparations c) russia's decision to leave the war d) germany's decision to resume unrestricted submarine warfare

What tree disease was spread to North America by a fungus carried on insects embedded on wood imported from northern Europe?

Give two abiotic factors which will affect the growth on a school playing field

What are the big four macromolecules common to living organisms, what are the subunits of each?

Match each process to the sphere at most directly involves

What are the four basic needs all living things must satisfy