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What are the problems that vertebrates required to solve to adapt to the terrestrial environment as they came from the aquatic habitat? How evolution does solve those problems?
The main problems vertebrates coming from water needed to solve to adapt to the terrestrial environment were the following: the difficulty to avoid dehydration; the problem of elimination of wastes in a medium where water is fewer available; the problem of protection against nocent solar radiation; the problem of gamete locomotion in the environment for fecundation; the problem of gas exchange, earlier completed by direct contact of water with gills; the problem of body support, as it was water that played this role in fishes.
How does Respiration in animals
What are excretory organ and product of a lizard
prove oxygen is produced during photosynthesis in the presence of light
The goals of treating heart failure are relief of symptoms, improvement in exercise tolerance, and reduction in the number of hospitalizations, decreasing morbidity and mortality
What kind of eye defect can give rise to short-sightedness? Long eyeballs, large eyeballs, too powerful a lens or a combination of these defects can give increase to short-sigh
Define the Healing Process - Root Canal Treatment The course of healing varies and depends on: 1) Initial size of the lesion: It takes longer for larger periradicular lesio
SE X DIFFERENTIATION MECHANISM - Primitive gonads are identical in both sexes upto 6 weeks of gestation pressure. This gonad is known as bipotential primordial gonad. It
Hormones Controlling Other Functions Crustacean's exhibit pronounced capacity for physiological color changes. It is known that the color changing mechanisms in Crustacea are
State the term - Molybdenum Molybdenum is intimately related to nitrogen metabolism of plants. It is part of the nitrate reductase system which helps to utilise nitrate for n
Ask quesIn Cross 1, pure-breeding colored, starchy kernel plants (C1Wx/C1Wx) were crossed to plants pure-breeding for colorless, waxy kernels (c1 wx/c1 wx). The F1 of this cross we
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