Please help me figure out these Biology questions.?

[Rose L]

Which organelle would you expect to find in the cells of a fern, but not a flatworm?
nucleus
chloroplast
ribosome
mitochondrion


Which system do you find in a human, but not in a flatworm?
a digestive system
a nervous system
a respiratory system


. Which fuel powers all of the activities of cells in all organisms on earth?
glucose
DNA
ATP
protein


Through which body part do humans take in the energy they need to survive?
stomach
mouth
skin
intestines


Do plants such as ferns need to break down glucose to obtain energy?
No, they absorb the sun's energy directly.
No, they absorb energy from the soil.
Yes, they make glucose and break it down to produce ATP.
No, they make glucose, but they don't break it down.