Mutualism. e.g. oxpecker and zebra
commensalism. e.g. remora fish and sharks
parasitism. e.g. tapeworms and cow
Answer:
The theory of aging evolution
Explanation:
The theory of aging evolution seeks to investigate the reasons why living beings begin a degeneration process at a certain age, among the various theories proposed is that of <em>Peter Brian Medawar</em> proposed in 1952, who claimed that natural selection avoided these mutations malignant <em>during the reproductive stage</em> to avoid the reduction of the population, however once this stage concluded the selection allowed them to manifest themselves.
Canadians consume about 548 grams of fat each day approximately
ChamberA space or room within the heart.
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Answer:
Notch signaling
Explanation:
Notch signalling operates in many cell type at different stages during development. The notch signalling regulates cell fate, cell proliferation, cell differentiation and cell death. The notch cascade contains notch as well as notch ligands. It also contains intracellular protein which transmits the notch signal to the nucleus of the cell. It is important for the regulation of embryonic development.
