My answer: A
Step by step explanation:
3 examples would be touch, light and chemical.
and the most common signal would be chemical.
Hope this helps! (:
I think it's convection currents or conduction or global warming
Option A, When cells undergo meiosis, the cells of sexual reproduction are divided into two parts, the first is the meiotic division that is reductional division, and the second is an equational division because they have the same number of chromosomes of the stem cell And in this situation, there is no duplication of DNA.
A formed, photosynthesis, uses sunlight and carbon an uses it for energy or glucose
