Q2.Two dimensional diagrams used in surface diagrams are:
Answer : Option BExplaination / Solution:
A shape with only two dimensions (such as width and height) and no thickness.
Squares, Circles, Triangles, etc are two dimensional objects.
Q3.Filiform apparatus present at micropylar part of the Synergids help in
Answer : Option AExplaination / Solution:
Filiform apparatus is finger-like projection attached with egg apparatus. This apparatus guide the pollen tube carrying male gametes for facilitating Syngamy.
Q5.The mechanism of distributing centriole pairs to the daughter cells is called
Answer : Option AExplaination / Solution:
The mechanism of distributing chromosomes to the daughter cells is called astral division. This kind of division occurs in animal cells.
Q6.Which of the following physical quantities a scalar?
Answer : Option DExplaination / Solution:
Work is defined as a dot-product (or scalar product) of force and displacement, both of which are vectors.
A scalar (dot) product of two vectors gives a scalar result.
Answer : Option DExplaination / Solution:
The Human Development Index (HDI) was developed by the United Nations as a metric to assess the social and economic development levels of countries.
Answer : Option AExplaination / Solution:
Flux—It means flow Electric Flux—The number of electric field lines passing through any area normally known as electric flux. It is given by ϕ=E × area flux is a scalar quantity