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Which type of cell came first in evolution - the eukaryotic cell or the prokaryotic cell?
This is an interesting problem of biological evolution. The most accepted hypothesis asserts that the simpler cell, the prokaryotic cell, appeared earlier in evolution than the more difficult eukaryotic cell. The endosymbiotic hypothesis, for instance, affirms that aerobic eukaryotic cells appeared from the mutualist ecological interaction among aerobic prokaryotes and primitive anaerobic eukaryotes.
In the experiments that led Fredrick Griffith to discover the "Transforming Principle", which of the following was the key step in illustrating that a substance within one cell cou
In the RBC, glucose can be oxidized to two primary products. One of the oxidation proucts is ribulose 5 phosphate, and the other is which of the following compounds? -lactate
Homogenization is intensive blending of mutually related substances or groups of mutually related substances to form a constant of diverse insoluble phases (sometimes withaddition
Which are the molecules that make possible active transport through membranes? Ans) Active transport is made by particular membrane proteins. These proteins are known as "pumps"
how can explain
Q. Write the meaning of Hypoglycemia? Hypoglycemia is a Greek term: hypo -meaning less; glyc - means sweet; and emia - means "of the blood". It is a condition in which less th
Determine the Principle of Brain and Behaviour A second principle is that insight into children's adaptation can be gained through an analysis of brain behaviour relationships.
Effects of Plant Growth Regulators on Development Like animals plants require input of energy from the outside environment to sustain growth and development. But unlike anim
Q. How do zygote and fecundation formation occur in these plants? Do these processes depend on water? The microsporangia in the male strobile rupture at the right time of the y
Which are growth tissues of plants? How do they categorize and where can they be found? Growth tissues of the plants are the meristems. The Meristems are the tissues that produ
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