A more stringent definition is agamogenesis which is reproduction without the fusion of gametes<span>. Asexual reproduction is the primary form of reproduction for single-celled organisms such as the </span>archaebacteria<span>, eubacteria, and protists. Many plants and fungi reproduce asexually as well.</span>
The heart must beat faster during exersise because by increasing the heart rate the body is able to increase cardiac output and deliver the necessary blood flow to the mucles
Bacterial pathogen can multiply quickly within a small space
