Self-pollination occurs when the pollen from anther is deposited on the stigma of the same flower. Because cross-pollination allows for more genetic diversity, plants have developed many ways to avoid self-pollination.
Chloroplast has evolved from photosynthetic bacteria
<span>Any of the above is possible because anything can happen to a gene when it is transcripted. Mutation happens when there is a defect of coding the right genes resulting to a change of DNA sequence. DNA may be reduced or unchangeable by a transcription factor because of mutation in a gene.</span>
<span>Enzymes, special kinds of proteins, move up the DNA, breaking the rungs</span>
Heat Creation. Fish, like all animals, create heat from metabolic activity. ...
Heat Loss. Fish lose metabolic heat through their gills. ...
Homeostasis. Most fish are poikilothermic, which means their body temperature changes with ambient temperature. ...
Exceptions to Pure Poikilothermy.
