A human child has all the basic features of humans, such as a brain, limbs, and facial structure. However, it does not look exactly like its parents; genetic variation ensures that each child shows differences in appearance and traits. The ...
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Decomposers in an ecosystem break down dead plants and animals, converting complex organic materials into simpler inorganic forms like carbon dioxide, water, and minerals, which can then be reused by producers in the ecosystem. Correct answer: (C) Download cbse sample paper ...
The correct statements about ozone depletion are: (i) Chlorofluorocarbons (CFCs) are the main cause. (ii) Ozone depletion increases harmful ultraviolet (UV) radiation reaching Earth. (iii) The ozone hole is prominently observed over Antarctica. Ozone depletion does not protect humans from ...
The cross involves RRyy × rrYY. All F1 offspring inherit the RrYy genotype. Since R (round) is dominant over r (wrinkled) and Y (yellow) is dominant over y (green), all F1 seeds will be round and yellow in appearance. Correct ...
The student can see distant objects like the blackboard clearly but cannot read nearby objects like the textbook. This indicates difficulty in focusing on near objects, a condition known as long-sightedness (hypermetropia), where the near point of the eye has ...