Answer:
Animals: eukaryotes. plants: chloroplast.
Explanation:
animals have eukaryotic cells.
while plants have chloroplast that helps in photosynthesis.
Yes the word believe can be in a hypothesis.
Answer:
There must be an independent variable, which changes throughout the course of an experiment; a dependent variable, which is observed and measured; and a controlled variable, also known as the "constant" variable, which must remain consistent and unchanging throughout the experiment.
Explanation:
Has left and right sides and usually displays cephalization.