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Gills -Respiration
Gills are highly vascularised extensions of gas exchange membranes. The simple type may be extension of the body surface as in sea-slugs, sea stars and many of slow moving aquatic animals. The complexity of the gills reflects the animal's requirement for oxygen. Animals with greater need or oxygen have elaborate gill structure. Before we discuss the structure of the gill let us consider the ways in which gills are ventilated because the environment in contact with respiratory surface must be continuously renewed to avoid depletion of oxygen or excessive accumulation of carbon dioxide.
Q. Where do the photochemical and the chemical phase of photosynthesis occur? The photochemical phase of the photosynthesis procedure occurs mainly on the thylakoids the green
definition of dietary factors. or what are dietary factors?
Consistently overwatering a potted tomato pla nt will eventually kill it. Using the map, suggest why waterlogged soil results in plant death. O2 cannot reach respiring root cells.
I stored a few of my things from April to September this year. When I wanted to unpack the boxes, I found hundreds of round, small, black things. They look like they might be snail
In animals, some of bacteria and fungi, and the first step in tetrapyrrole synthesis is the condensation of the amino acid glycine with succinyl CoA (an intermediate of the citri
Productive use values This is the value of natural products harvested through commercial logging, agriculture or fisheries and medicines that generated products that are of co
What is the most accepted hypothesis about the origin of life on earth? How does it compare to the other main hypotheses? The heterotrophic hypothesis is the strongest and most
write a note on mode of nutrition
The breakdown of ATP releases energy, which is utilized by other reactions that require energy. Identify other examples where inventions have utilized a similar principle, where en
describe between native and non-native species from the Otay river valley
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