The elbow is an example of which type of joint?
hinge
pivot
saddle
gliding

What organ is the first to receive nutrients that have been absorbed from the digestive tract?

When it is summer at the south pole, a. the northern hemisphere is tilted toward the sun. b. the southern hemisphere is tilted away from the sun. c. the northern hemisphere is tilted away from the sun. d. both the southern and northern hemispheres are tilted toward the sun.

Which of the following best demonstrates the unity among all organisms? matching dna nucleotide sequencesdescent with modificationthe structure and function of dnanatural selectionemergent properties