Explore topic-wise InterviewSolutions in Current Affairs.

Role of an individual in the community is called as Niche.

b. Inter specific competition

The environment in which a community lives is called as Biotype.

a. Intra specific competition

a. Induced Resistance

The study of community in relation to environment is called Synecology.

The correct answer is Palaeontology.

• The study of extinct animals is called Palaeontology.

• Palaeontology:
  • It is the scientific study of the life of the geologic past of lifeforms which also involves the analysis of plant and animal fossils, including those of microscopic size, preserved in rocks. 
  • Georges Cuvier is known as the founding father of paleontology.

• Herpetology is the study of amphibians and reptiles.
• Ornithology is the study of birds.
• Geology is the study of the Earth.

The dorsal sclerotized region of insect body is Tergum.

a. Autecology

The equation above gives 

(z² − 1) = e^i2πn/8 (z + 1), n = 0, 1, 2 · ··, 7 , 

or 

(z + 1)(z − 1 − e^i2πn/8) = 0, n = 0, 1, 2 · ··, 7. 

Thus the roots are 

z = −1 and z = 1 + e^i2πn/8, n = 0, 1, 2 · ··, 7 .

The correct answer is It is very expensive.

• Silver
  • It is a soft, white, lustrous transition metal.
  • It is found in the free element as well as in the combined state.
  • Its atomic number is 47 and its mass number is 108.
  • It is a shining white solid with high ductility and malleability.
  • Though it is the best conductor of electricity still it is not used in electric wiring because of its cost. It is very expensive compared to the widely used wiring material copper.
  • It oxidizes easily and tarnishes when it comes in contact with air.
• Materials commonly used in electric wires are copper and aluminum. 

The correct answer is the pulmonary vein.

• Pulmonary vein
  • The Pulmonary vein is the vein that transfers oxygenated blood from the lungs to the heart.
  • The largest pulmonary veins are the four main pulmonary veins, two from each lung that drains into the left atrium of the heart.
  • The pulmonary veins are part of the pulmonary circulation.
  • The pulmonary veins originate from individual alveoli within the lungs as capillary vessels.

• Superior Vena Cava
  • The superior vena cava is a large valveless vein that conveys deoxygenated blood from the upper half of the body and returns it to the right atrium.
• Hepatic Portal Vein
  • It is a vessel that moves blood from the spleen and gastrointestinal tract to the liver.
  • It is approx 3-4 inches in length and is usually formed by the merging of the superior mesenteric and splenic veins behind the upper edge of the head of the pancreas.
• Renal Vein
  • The renal veins are veins that drain the kidney.
  • They connect the kidney to the inferior vena cava.
  • The blood flowing through the renal vein is deoxygenated and contains nitrogenous waste.

a. 25-28 seconds

House flies antennae are Aristate.

a. Liquid filled thermometers

e^iz = e^ix−y = e^−y (cos x + isin x) = u + iv, 

e^−iz = e^−ix+y = e^y(cos x − isin x). 

Thus 

cosz = (e^iz + e^−iz)/2 = cos x cosh y − isin x sinh y. 

If u is equal to cos z, then 

e^−y cosx = cos x cosh y − isinx sinh y. 

The real part and the imaginary part of the equation above are: 

(e^−y − cosh y) cosx = 0 and sinx sinhy = 0.

If y ≠ 0,  these two equalities give sinx = cosx = 0, which is not possible. Both equalities are satisfied if 

y = 0.

Thus the real part of e^iz is equal to cos z only if z is real.

u_xx = 6ax , u_yy = 0 . 

Thus ∇²u = 0 only if a = 0, in which case 

u = x. 

The conjugate of x, denoted as v, satisfies 

v_y = u_x = 1 and v_x = −u_y = 0. 

We get 

v = y + c, and u + iv = z + ic, 

where c is a constant.

Antennae of the Thrips Moniliform.

(2) If both assertion and reason are true but reason is not the correct explanation of assertion.

1. evidence

2. separation 

3. permission 

4. appearance 

5. willingness 

6. comfortable 

7. nobility 

8. deserted.

1. inventive 

2. ignorantly

3. youthful 

4. professional 

5. imagination 

6. madness 

7. Insanity 

8. studious 

9. difference 

10. disturbance

(3) c DNA only

Correct option: (1) Somatic embryogenesis

(3) If assertion is true but reason is false. 

(1) Heterosis

(4) Perisperm

(2) Salmonella typhimurium

Correct option: (2) Apomixis

Correct option: (3) Transposons

Correct option (4) C, H, Mg, N

(4) (i) - b, (ii) - d, (iii) - a, (iv) - c

 (4) Phallic gland opens in left phallomere 

d. Chrysopide 

(3) a & b represent albuminous seeds

Correct option: 

(3) i–a, ii–d, iii–c, iv–b

Correct option: (2) Underground stem – Turmeric

Correct option: (2) Forewings called tegmina used for flight are attached to 1st thoracic segment

The adults of Aphidoidea are preserved in 95% alcohol tubes.

(1) a - iv - Q, b - iii - P, c - ii - S, d - i - R 

(3) (i) - b, (ii) - a, (iii) - d, (iv) - c 

(1) (i) - Porphyra, (ii) - Polysiphonia, (iii) - Chara, (iv) - Dictyota

1. was driving

2. visited

3. spoke.

(c) were speaking

1. for

2. ago

3. since

4. for

5. since

(c)    rises 

Hari: My parents are planning to go to America.

Anil: When are they leaving?

Hari: They are leaving next month.

Anil: Are you going with them?

Hari: No, I can’t go with them, because I have a project to complete.

1. offers

2. begins

3. cook

4. are.

1. loves

2. keeps

3. cost.

Gregor Mendel (i) hypothesised that each character or trait is expressed due to a pair of factors. Now these are known as Genes (ii). 

A population or group of insects composed of a single genotype is called Biotype.