Practice 1: Which of the following are the major structures of the nervous system. Check all that apply.
A. Brain
B. Heart
C. Lungs
D. Stomach
E. Spinal cord
F. Nerves

Metamorphic rocks are formed when sedimentary or igneous rocks are subjected to heat or pressure and recrystallize without melting. which of the following rocks results from the metamorphism of limestone? a. granite b. slate c. sandstone d. marble

How energy flows through each level in this energy pyramid. is all the matter and energy from one level transferred to the next level?

In cattle a single gene with two alleles determines fur color the fur can be red white or roan roan fur has both red and white hair which of the following statements is true a the allele for roan fur color is dominant over red and white fur color b the allele for red fur color is dominant over white and roan fur color c the roan and white alleles are expressed independently of the other d the red and white alleles are expressed independently of each other