Lack of light in the depths of the ocean does not mean life does not exist at such depths. Marine biologist have found numerous interesting (and slightly nightmareish) life forms at various depths.
<span>Homologous chromosomes exchange DNA during meiosis in a process called crossing-over. Crossing-over sometimes involves an unequal swapping of DNA. Basically one chromosome in the pair gets extra DNA.</span>
Idk cause i cant see the whole page
Wind Pollination
Many of our forest trees are wind pollinated, as are important prairie plants such as grasses, ragweed, and sage. Some pollen eventually falls into lakes or peatlands where it collects with other sediments, layer after layer, year after year.
