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Which Of The Following Are Examples Of Involuntary Muscles? (A) Smooth Muscles. (B) Cardiac Muscles. (C) Skeletal Muscles. (D) All Of These.

The correct answer is (D) All Of These. Muscles that function without our volition or consciousness are termed involuntary muscles.... View Article

Which One Of The Following Animals Has Two Separate Circulatory? (A) Frog. (B) Whale. (C) Shark. (D) Lizard.

The correct answer is (B) Whale. Explore more such questions and answers at BYJU’S.

If GO = 32, SHE = 49, Then SOME Will Be: (A) 52.(B) 56.(C) 62.(D) 66.

The correct answer is (B) 56. In this coding system, Z = 1, Y = 2, x = 3 and... View Article

Who Proposed The Theory Of Evolution?

Charles Darwin, an English biologist, was the first person to propose the theory of evolution in the year 1859. According... View Article

The Descending Pulley Has A Radius 20 Cm And Moment Of Inertia 0.20 Kg-M2. The Fixed Pulley Is Light And The Horizontal Plane Frictionless. Find The Acceleration Of The Block If Its Mass Is 1.0 Kg.

Sol: Given: Mass = 1.0 kg. Radius = 20 cm. The moment of inertia = 0.20 kg−m2. Tension = T... View Article

Prove That Sin 50° – Sin 70° + Sin 10° = 0.

Given: ⇒ sin 50° – sin 70° + sin 10° = 0 ⇒ sin 50° – sin 70° + sin... View Article

Define The Term New Species?

When a group of individuals gets separated from their species for a long time and later evolves as different traits... View Article

Complete The Second Pair Based On The Relation Shown In The First Pair: Fog : Visibility: : Aids:?

The answer is Resistance. Fog : Visibility: : Aids: Resistance. Explore more such questions and answers at BYJU’S.

D B H F K L T H F B H K L T B D B H T D B B D H K. In The Given Alphabetic Series How Many Time Is K Succeeded By L And H Succeeded By K? (A) 0. (B) 1. (C) 2. (D) 3.

The correct answer is (B) 1. In the given alphabetic series, k is succeeded by l and h is succeeded... View Article

Complete The Following:_is Related To Masculine, Woman Is Related To_. (A) Brave And Mrs.(B) Man And Feminine. (C) Capacity And Women. (D) Disguise And Modest.

The correct answer is (B) Man and Feminine. Man is related to Masculine; Woman is related to Feminine. Explore more... View Article

Man Measures Time Period Of A Pendulum (T) In stationary Lift. If The Lift Moves In Upward Direction With Acceleration g/4, What Will Be The New Time Period?

As given: The lift moves in an upward direction. According to the Newton’s second law of motion, the net force... View Article

Let D And E Are Points On Sides AB And Ac Respectively Of Triangle ABC Such That The Area of Triangle DBC = The Area Of Triangle EBC Prove That DE || BC.

Sol: Given D and E are point on sides AB and AC respectively of triangle ABC Area of Triangle DBC... View Article

A Hollow Iron Pipe Is 21cm Long And Its External Diameter Is 8cm. If The Thickness Of The Pipe Is 1cm And Iron Weighs 8g/Cm3, Then The Weight Of The Pipe Is :

Sol: Given: Height of pipe, h = 21cm The external diameter of the pipe is 8cm. The thickness of the... View Article

Humus Is An Organic Matter Mainly Constitutes Of (A) Vegetables. (B) Dried Leaves. (C) Dead And Decaying Animal Substances. (D) All Of These.

The correct answer is (D) All Of These. Humus is the organic matter present in the soil and is composed... View Article

A Cohort Is A Group Correlated With (A) Order.(B) Genera. (C) Species. (D) Families.

The correct answer is (D) Families. In taxonomic rank, cohort refers to a group of animals of the same species... View Article

Use The Table Given Below To Find The Following:

Sol: Given: Class interval 30−34 35−39 40−44 45−49 50−54 55−59 Frequency 7 10 12 13 8 4 (A) The Size... View Article

Which Of The Following Cell Organelle Is Known As The Protein Factory Of The Cell? (A) Cytoplasm. (B) Ribosomes. (C) Mitochondria. (D) Endoplasmic Reticulum

The correct answer is (B) Ribosomes. Ribosomes are known as the cell’s protein factory as this cell organelle plays a... View Article

Name The Pathogen Vector And Symptoms Of Malaria

Malaria is a mosquito-borne infectious disease caused by the female Anopheles mosquito. The Pathogen Vectors of Malaria are Plasmodium ovale,... View Article

Two Large Vertical And Parallel Metal Plates Having A Separation Of 1 Cm Are Connected To A Dc Voltage Source Of Potential Difference X. A Proton Is Released At Rest Midway Between The Two Plates. It Remains At Rest In The Air Then X Is:

Force on the proton is equal to force due to its mass. qE = mg \(\begin{array}{l}\Rightarrow q\frac{V}{d} = mg\\\Rightarrow V... View Article

Which Of The Following Pair Is Not Correct? (A) Tansley – Coined The Term Ecosystem. (B) R. Mishra – Father Of Indian Ecology. (C) E. Haeckel – Coined The Term Ecology. (D) None Of These.

The correct answer is (D) None Of These. (A) Ernst Heinrich Philipp August Haeckel was a German biologist who discovered,... View Article

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