I think if the whale population decreased the surface fish populations would decline due to reduced populations of algae. This can be simply explained by the fact that, if the whale population is decreased, it means that the nitrogen rich feces that is supply nutrients to the algae would also decrease and therefore decrease the population of the algae and as a result the population of of the surface fish would also decline.
Answer:
Cancer is caused by accumulated damage to genes. Such changes may be due to chance or to exposure to a cancer causing substance. The substances that cause cancer are called carcinogens. A carcinogen may be a chemical substance, such as certain molecules in tobacco smoke.
Explanation:
Explanation:
Homozygous Red, or Homozygous Dominant: RR
Yellow fruit must be homozygous recessive, or else the yellow would show: rr
Plant 1 Genotype: RR
Plant 2 Genotype: rr
The punnet square is attached.
The Genotypic ratio is: 4:0 or just Rr because the offspring turned out to be 100% heterozygous.
The Phenotypic ratio is just red, because no other colors come out of the offsping.
Hope this helps :)
Answer:
Margulis theorized that eukaryotic cells (cells with nuclei) evolved from a symbiosis of bacteria without nuclei that had previously lived independently. ... This serial endosymbiotic theory, or SET, gave a new view of evolution and helped explain the origin of cells with nuclei.21-Oct-2008
Works written: Origin of Eukaryotic Cells, Symbiosis in Cell Evolution, Microcosmos ...
Professions: biologist, scientists
Spouse: Carl Sagan
Explanation:
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p2<span> + 2pq + q</span>2<span> = 1. is the equation</span>
