The bicep muscle has an attachment point at the shoulder and one in the upper forearm. look at these images of the bones of the arm. imagine that the point of the arrow is where the force of the biceps muscle is applied to the bone.

which image would result in the biceps muscle contracting and the forearm being lifted?
-a
-b
-c
-d

The embryos of a bird, a reptile, and a mammal are similar in appearance. how does comparing the physical appearance of embryos of different species support the theory of evolution? a. it shows that these organisms share a common ancestor. b. it provides evidence that these organisms eat the same foods.c. it shows that these organisms share the same habitat.d. it provides evidence that these organisms suffered a genetic mutation.

How many copies of genes do gametes have?

An uncomfortable feeling in the ears when descending in an airplane is caused by changes in air pressure on the: a. inner ear b. middle ear c. eardrum d. hammer/anvil