Give five points to show the significance of variation? Hint: Variations involve changes in the genetic makeup of a population…
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The term ecosystem was coined by? (a) E.P. Odum. (b) A.G Tansley. (c) E. Haeckel. (d) E. Warming. Hint: The…
What are universal gates? Why are they called so? Explanation: In digital electronics, AND, OR, and NOT gates form the…
Energy flow in an ecosystem is (A) Unidirectional (B) Bidirectional (C) Multi directional (D) All of the above Hint: Energy…
There are two charges +1 microcoulomb and +5microcoulomb. The ratio of the forces acting on them will be (A) 1:1…
Correct percentage of carbon dioxide present in the atmosphere is A. 0.03% B. 0.3% C. 1% D. 1.1% Hint: Carbon…
A colour blind male (XcY) marries a carrier female (XCXc). Possible genotype of daughters will be______? a. XcXc only b. XCXC…
The first microscope was invented by (A) Leeuwenhoek (B) Hooke (C) F. Janssen and Z. Janssen (D) Schleiden Hint:-A microscope…
Key Concepts Drift Velocity (\(v_d\)): The average velocity that charged particles, such as electrons, acquire in a conductor when an…
What is oogenesis? Explain with the help of a diagram. Hint: Oogenesis is the process involving the formation and maturation…