Answer:
It needs the spines for protection
Explanation:
The cactus would develop the spines as a form of protection to protect itself from being consumed and to survive longer.
Cellular respiration provides the ATP necessary for muscle contractions
Answer 1)
Not 2 bc they don’t come from the soil, they are made by plants through photosynthesis.
Not 3 bc I’m pretty sure sugar is not the only source of food for plants.
Not 4, I’m not exactly sure why not 4, but my gut is saying 1.
Sorry the explanation is not super helpful.
