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Tell me which statement belongs to either natural selection, genetic drift, or gene flow Can you tell me if I am correct? -Consistently causes a population to become better adapted to its environment (I said this is natural selection). -Causes allele frequencies to fluctuate randomly (I said this is genetic drift). -Responsible for the founder effect (I said this is genetic drift). -Cannot cause a harmful allele to become more common (I said this is genetic drift). -Can introduce new alleles into a population's gene pool (I said this is gene flow). -A result of the movement of fertile individuals or their gametes (I said this is gene flow). -A result of differential success in reproduction (I said this is natural selection). -Responsible for the bottleneck effect (I said this is genetic drift).
Action of Hormones We said earlier that hormones are released into the blood stream or extracellular fluid and therefore, reach most of the cells of the body. However, they
justify the claim that paramecium is the highly evolved protozoan basing on the morphological and physiological features .
The first movements of the foetus and appearance of hair on its head are usually observed during which month of pregnancy? 1. Fourth month 2. Fifth month 3. Sixth month
Define Transverse section of body of male Ascaris? 1. Body wall consists of the following: (a) Cuticle is the outermost layer. It is a thick, tough, elastic membrane
What are the intermediate and the definitive hosts of the plasmodium? In the life cycle of the plasmodium humans are the middle hosts (where asexual reproduction takes place) a
A wire 50.0 m long and 2.00 mm in diameter is connected to a source with a potential difference of 9.11 V, and the current is found to be 33.7 A. Assume a temperature of 20°C and,
Staphylococcal food poisoning results from consumption of food containing enterotoxin produced by enterotoxigenic strains of Staphylococcus aureus. It is caused by ingestion of imp
What is Metabolism ? The sum total of vital activities ( movements , nutrition, growth, respiration, excretion , reproduction, behaviour ,etc. Is the life of a living bei
Define Vitamin A, Iron and Zinc required for elderly? Vitamin A, Iron and Zinc: The recommendation for iron is said to decrease in elderly women. Intake of vitamin E and zinc
Explain about the Vitamin A? Vitamin A, one of the fat soluble vitamins, refers to a sub-group of retinoid that possess the biological activity of all-trans-retinol. The term '
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