The answer is A. They produce food by photosynthesis.
The function of leaves is taken on by stems of such cacti.
It’s B...Glucose
metabolic disorder caused by excess blood glucose levels, is a key example of disease caused by failed homeostasis.
Answer:
The correct answer choice is A. Magma, or hot rock, being forced up within the mantel.
Animals, including plants and some other microbes, get energy directly from the sun. But when they’re INDIRECTLY getting energy from the sun, they eat other organisms, like plants and/or meat.