A person scratching an itch is an example of a (n)

stimulus

response to an

OA) voluntary, internal

OB) voluntary, external

OC) involuntary, internal

OD) involuntary, external

Which of the following types of waves has more energy than an x-ray?

In rabbits, b represents the allele for black coat and b represents the allele for white coat. black is dominant over white. if a rabbit has the genotype bb, what is the rabbit's phenotype? a. gray b. black c. white d. bb x bb

What determines whether blood is bright red or a dull brick-red?

Three month old Nolan is no longer interested in a puppet head this is probably because he's became blank

An experiment was conducted to determine which type of fruit attracts the most fruit flies. Equal sized pieces of apple, pear, and banana were placed in separate containers at different areas around the school.

Which of the following is the era in which we now live? Mesozoic Phanerozoic Cenozoic Paleozoic

Adenine pairs with what

Trees take carbon dioxide out of the air and convert it to oxygen, so the government funds a tree-planting initiative by offering $300 to any citizen who plants a tree.

How many cells does a unicelullar living organism have

When does a wheel and axle have a mechanical advantage greater than one?