Connective tissue structures that attach muscles to bones are known as
a. tendons.
b. smooth muscle.
c. skeletal muscle.
d. ligaments.

the corret answer is A tendons.

(took the test.)

he forelimbs below belong to four species that descended in a direct line from the ancestral mammal shown above. of the four descendants shown, which species most likely appeared earliest in evolutionary history?

the answer is true when observing or determining population size, a direct observation is use, in which each organism is counted in a population or in an area. one benefit of this measure is that you get the exact population count but it will take a long time to  determine  the  size  of a  population.