Isogamy<span> <span>is a form of </span></span>sexual reproduction<span> <span>that involves </span></span>gametes<span> <span>of similar </span></span>morphology<span> <span>(similar
shape and size), differing in general only in </span></span>allele expression<span> <span>in one or
more </span></span>mating-type regions. Because both gametes look alike, they cannot be classified
as "male" or "female<span>."</span>
60 percent of the biodiversity is in coral reefs
Variation allows some individuals within a population to adapt to the changing environment. Because natural selection acts directly only on phenotypes, more genetic variation within a population usually enables more phenotypic variation.
Answer:
Location of the Heart. The human heart is located within the thoracic cavity, medially between the lungs in the space known as the mediastinum.
