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Whether bat is a bird or animal?

Bat is one type of animal that acts as a natural reservoir of many pathogens, such as rabies. Because they are highly mobile, social, and... View Article

In human digestive system, the enzymes pepsin and trypsin are secreted respectively by which organs?

(a) Pancreas and liver(b) Stomach and salivary glands (c) Pancreas and gall bladder(d) Stomach and pancreasCorrect option:(d) Stomach and... View Article

Estrogen is secreted by

(1) Corpus luteum(2) Membranous granulosa of Graafian follicle(3) Germinal epithelium of ovary(4) PituitaryCorrect option: (2) Membranous... View Article

What are flame cells?

Flame cells are the excretory structures in Platyhelminthes, rotifers, some annelids and the cephalochordate-Amphioxus. These are the simplest... View Article

Evolutionary history of an organism is known as

(a) Phylogeny(b) Ancestry(c) Paleontology(d) OntogenyCorrect option: (a) PhylogenyThe evolutionary history of an organism or species is known as... View Article

Cells which lack nuclear membrane are

(a) eukaryotic cells (b) prokaryotic cells (c) single cells (d) multicells Correct option: (b) prokaryotic cells Cells which lack nuclear... View Article

During expiration the diaphragm becomes

(a) Oblique(b) Dome shaped(c) Bulging(d) FlattenedCorrect option: (b) Dome shapedDuring expiration the diaphragm becomes dome shaped.... View Article

What type of nutrition is present in the bread mould?

The type of nutrition is present in the bread mould is saprophytic.... View Article

The whole process of aerobic respiration takes place in the

(a) Mitochondria (b) Mitochondria and parozysms (c) Mitochondria and cytoplasm (d) Cytosol Correct option: (c) Mitochondria and cytoplasm The... View Article

Porifera is triploblastic or diploblastic?

Porifera is neither triploblastic nor diploblastic since Porifera contains the cellular level of organization. Diploblastic and Triploblastic... View Article

The nucleus is separated from the cytoplasm by the _______ .

(a) cytoplasm (b) cell membrane (c) nuclear membrane (d) protoplasmCorrect option: (c) nuclear membrane The nucleus is separated from the... View Article

AIR Spotlight – PM’s Intervention at G7 Summit 2021

AIR Spotlight is an insightful programme featured daily on the All India Radio Newsonair. In this program, many eminent panelists discuss issues... View Article

22 June 2021: PIB Summary & Analysis

June 22nd, 2021, PIB:- Download PDF Here TABLE OF CONTENTS 1. MoU between India and Fiji 2. Indian Navy - US Navy: Carrier Strike Group Passage... View Article

The area bounded by the curves y = cos x and y = sin x between the ordinates x = 0 and x = 3π/2 is

1) (4√2 - 2)sq units 2) (4√2 + 2)sq units 3) (4√2 -1)sq units 4) (4√2 + 1)sq units Solution: (1) (4√2 - 2)sq units... View Article

The area (in sq units) bounded by the curve y = 1 + log_e x, the X – axis and the straight line x = e is equal to

1) 3e - 2 2) e 3) e - 1/e 4) e + 1/e Solution: (2) e... View Article

Find the area of a curve xy = 4, bounded by the lines x = 1 and x = 3 and x-axis

1) log 12 2) log 64 3) log 81 4) log 27 Solution: (3) log 81... View Article

The area enclosed between y² = x and y = x is

1) 2/3 sq units 2) 1/2 sq units 3) 1/3 sq units 4) 1/6 sq units Solution: (4) 1/6 sq units... View Article

If the area between y = mx² and x = my² (m > 0) is 1/4 sq units, then the value of m is

1) ± 3√2 2) ± 2/√3 3) √2 4) √3 Solution: (2) ± 2/√3... View Article

The area in the positive quadrant enclosed by the circle x² + y² = 4, the line x = y √3 and x-axis is

1) π/2 2) π/4 3) π/3 4) π Solution: (3) π/3 x2 + y2 = 4 --- (i) x = y √3 y = x / √3 ---- (ii)... View Article

The area of the region enclosed by the curves y = x, x = e, y = 1/x and the positive x-axis is

1) 1 sq units 2) 3/2 sq units 3) 5/2 sq units 4) 1/2 sq units Solution: (2) 3/2 sq units... View Article

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