An example is a radio wave
Parenchyma
phloem
<span>xylem</span>
A.photosynthesis because algae is a type of plant.
Hes trying to infer the density of oak trees (:
Answer:
tendons and knees
Explanation:
the tendons are in the fingers, and they move to allow various actions such as holding things. the knees, allow us to walk, and join the forelegs and legs. their movement is different and they allow various actions, however, both are important.