Model two because it includes more organelles
Answer:
sensory receptors in the skin detect the stimuli from the environment
Explanation:
<span>Embryo means "an unborn or unhatched offspring in the process of development, in particular a human offspring during the period from approximately the second to the eighth week after fertilization (after which it is usually termed a fetus)."</span>
Answer: old bones of animals/mammals that’s are extinct
Explanation: plz give brainlest
