Answer:
4. Microorganism
Explanation:
Wind, Salinity, Soil moisture are abiotic factors, non living things.
The sexual type of reproduction requires cells to undergo the process of meiosis however the other type which is asexual only mitosis is important to reproduce. In meiosis, a cell is being separated into two unique cells while mitosis reproduce where all cells are identical.
Primary producers make their own food for example plants. As you go into the upper levels of the food chain the energy gets distributed to each level, but they lose some of their energy. Without primary producers alligators will not be able to obtain the energy they need for themselves to survive.