Answer:
Environmental hazards such as predators reduce the change if surviving into adulthood, Large amounts of gametes go unfertilised and wasted, Not guaranteed that sperm will come in contact with eggs, Greater chance of desiccation of gametes/zygotes.
Explanation:
A person with a cold can spread<span> the infection by coughing and/or sneezing. </span>Bacteria <span>or viruses </span>can<span> be passed on by touching or shaking hands with another person. Touching food with dirty hands will also allow viruses or </span>bacteria<span> from the intestine to </span><span>spread</span>
They would over run the lake and kill all of the other species.