Why is ecosystem difficult to define? Scientists disagree about its true meaning.
o It is a synonym for biome.
o It applies to a vast number of areas with many different traits.
o The word comes from complex Greek roots.

Why do mutations in genes affect traits? o a. genes determine what type of mutagens an organism has. o b. genes produce proteins that cause traits. o c. genes affect how many chromosomes an organism has o d. genes code for carbohydrates that influence traits.

Discuss cell surface transport in the structure of constituents

What type of tree is the tallest tree in the world?