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Deinococcus radiodurans is a bacterium that was isolated from cooling ponds in and around nuclear power plants. It is highly resistant to ionizing radiation. Propose an hypothesis to explain the high level of radiation resistance and an experiment to test your hypothesis
Q. How does photosensitivity in annelids, cnidarians and worms differ from insects, cephalopods and vertebrates? In the first mentioned group of animals there are photoreceptor
The major hazards encountered in the biological lab work are diseases like infections and allergies which are caused by handling live animals. dissections, plant and animal tissues
what is the prevailing wind direction in equatorial regions affected by the trade winds? a) The wind blows from east to west b) the wind blows from west to east
Q. How are the three major arthropod classes characterized according to the presence of wings? Arachnids and Crustaceans do not have wings. Most insects have wings.
A cross among wild-type fruitfly Drosophila melanogaster [normal bristles and grey body (s+s, e+ e)] with a mutant fly [short bristles and ebony body (ss ee)] produces following p
Q How do cells get energy for their functioning? Cells get energy for their metabolic reactions from the breaking of organic molecules with high energetic content. This energy
V apour Theory (i) It was proposed by a Greek philosopher Pythagoras in 500 B.C. (ii) Each organ of an animal body emitted some kind of vapour and that a ne
Define pisces
Q. What is the group of the phylum Chordata that first colonized the terrestrial environment? From which habitat did they come? Partially aquatic partially terrestrial animals,
full variation topic
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