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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.
Q How different are extracellular and intracellular digestion? What is the evolutionary advantage of extracellular digestion? Intracellular digestion is that in which the break
Haustorial Behavior of Embryo Sac There are instances in which the entire embryo sac may grow beyond the ovular tissue. The central cell may also form multicellular projectio
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How can I construct a fat molecule whose fatty acid tails are 4 carbon atoms long
Define the term Prebiotics? Dietary Sources and their Mode of Action/health Effects We have already seen how prebiotics are defined. Let us go a little in-depth about them. Pre
CODOMINANCE The alleles which do not show dominance-recessive relationship and are able to express themselves independently when present together are called codominant alleles.
TYPE S OF RIBOSOMES Ribosomes are of two types: - 1 . Procaryotic Ribosomes - 70 s = Occur in cytoplasm of prokaryotes, and also in mitochondria, and Chloroplast o
Consider an axon of a neuron. At time=t1, its voltage is at threshold for an action potential; at time=t2, its voltage is at 0 millivolts prior to the peak of that action potential
Q. Management of hypertension? the management of hypertension, angina pectoris and myocardial infarction. It must be clear to you that some aspects of dietary management may di
if i start in the superior mesenteric vain where do i have to go through to get to the left anterior circumflex humeral artery. by the way of the hepatic portal vein and the heart
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