Answer:The first one
Explanation:Parasites increase in the host's body because they need to reproduce, causing the number of parasites to increase
The sum of all the genes in a population is referred to as the gene pool.
The two types of crust are oceanic and continental, the lithosphere is composed of earth's crust and upper most mantle
<em>Leaves fall from broken branches only if they were dry.Any others will not fall</em>
