The food supply of the carnivores in an ecosystem is the available herbivores, so in order for the carnivores to survive for an extended amount of time their population must be considerably less than their food supply, so that there is an abundance of prey available. Populations of predator and prey have a cyclic increasing and decreasing relationship to regulate the number of both.
Answer:
We have the atmosphere protecting us
Explanation:
There are different layers of the atmosphere that help us survive such as the ozone layer which blocks most uv rays from the sun causing us to burn less easily
I don't think the water cycle has a beginning or ending because all the water in the world is always in various stages of the cycle. It's kind of like asking if a circle has a beginning or ending.
At the very least, I can't think of a specific 'beginning' or 'ending', although I suppose there is an argument to be made that percipitation is the ending and evaporation is the beginning.
Daughter cells if I'm not mistaken
Hydrogen and oxygen make up water for polar molecules. And it is neutral