Explore topic-wise InterviewSolutions in Current Affairs.

Without meiosis there wouldn't be any variation, it's the basic and most important thing to point out.

Explanation: In mitosis their is developement of clones means identical cell. There arises two case

1. If from beginning there wasn't any meiosis; then we'll see most of the organisms alike(mutation may occur)

2. If in humans meiosis stops and we start producing gamete from mitosis; then we'll notice considerable variation (except inbreeding). But it'll be more like blending variation not the independent assortment.

Hydra and planaria reproduce by asexually.

(a) Sexual reproduction involves gametes. 

(b) Asexual reproduction does not involve gametes.

Ferns and mosses.

Correct option is (C) Brazil

Correct option is (C) Asbestos

• 75% people of the eastern part of Europe are involved in agriculture.
• However, only 25% people of the western part of Europe are involved in agriculture because the western region is mountainous.
• The colour of soil is grey in Norway and Sweden.
• The colour of soil is dark brown in the southern part of Europe.
• The coastal region of Middle Sea grows citrus fruits, wheat and corn.
• Question 15.
  Write a note on the minerals of Europe.
  Answer:
• Europe is a mineral-rich continent.
• The western part of Ural Mountains of Europe produces 56% minerals of the world. .
• This region mainly produces iron, coal, bauxite and potash.
• Apart from-this, the Ruhr province of Germany produces coal.
• The Quinoa province of Russia produces iron.
• Therefore, the iron and steel industry has developed very well in Europe.

(C) Flexagonal

Option (C): Flexagonal Shape

Correct option is (A) 4813.2

Correct option is (B) 6960

The answer is (b) (i), (iii) and (iv)

Dog reproduce sexually, yeast reproduce by budding, Amoeba reproduce sexually and cultivated banana also reproduce asexually.

Paramecium and Leishmania.

(a) Sexual reproduction.

(b) Asexual reproduction.

Human beings reproduce by sexual method.

Correct option is (B) 56

Iron, coal, bauxite and potash.

Correct option is (A) 25

Correct option is (C) France

Correct option is (C) 16

Correct option is (D) Triangular

Sexual maturity is attained due to the secretions of sex organs “testis” and “ovaries” in males and females respectively. 

These secretions are Testosterone (male sex hormone) and Progesterone and Estrogen (female sex hormones) at puberty.

The cracking on voice in boys is due to the growth of voice box or larynx which can be seen as a protruding part of throat called Adam’s apple.

Sexual method.

(C) Mountainous

The function of a flower is to make male and female gametes and to ensure that fertilisation  will take place to make new seeds for the reproduction of plant.

Correct option is (D) 13

Correct option is (D) Antarctica

Brazil, Columbia, Venezuela and Ecuador; 90% of the coffee of the world.

Because the region is full of snowy mountains.

Shift farming, plantation farming, horticulture, etc.

North Chile, Peru, Columbia, Terra roxa, etc.

The changes that occur in humans on sexual maturity are collectively referred to as secondary sexual characters. Some of these changes are common to both the genders, whereas some changes occur specific to one gender.

The changes common to both sexes are: 

1. Growth of thick hair in armpits and genital area. 

2. Darkening of armpits and genital area. 

3. Growth of thin hair on arms, legs and face. 

The changes occurring in girls: 

1. Enlargement of breasts 

2. Darkening of the area of nipple 

3. Beginning of menstruation. 

The changes occurring in boys are: 

1. Appearance of thick hair on face. 

2. Cracking of voice.

Testes are extra abdominal because they require temperature less than body temperature for the production of sperms. If they are attached with the abdomen they cannot produce sperms due to high temperature.

North America: Mexoci city, New York city, Los Angeles, Toronto, Chicago, Houston, Montreal, Ecatepec, Philadelphia, etc.

Europe: London, Berlin, Madrid, Rome, Paris, Bucharest, Vienna, Budapast, Humburg, Warsaw, Barcelona, Italy, Munich, Pragua, etc.

In flowers sex organs located.

The major reason for the decline in balance of sex ratio is due to reckless female foeticide, sex ratio is declining rapidly in some section of our society.

The human male sex hormone testosterone regulates the formation of the male gamete, the sperms and brings about changes in appearance seen in boys at the time of puberty. 

The human female sex hormone estrogen brings about the changes occurring in girls at puberty and progesterone controls the uterus changes occurring during the menstrual cycle and also helps in maintaining the pregnancy.

 plant’s sex organs located are In flowers.

Contribution of organised and unorganised sectors in Ahmedabad in 1997-98:

1. Government must provide more incentives to people who are engaged in unorganised sector. 

2. Government should give waiver of certain taxes, exemptions of certain taxes and encourage many others to take up the establishments.

B) Public sector

correct option is D) Blacksmith

Correct option is (C) 90

Correct option is (C) 4.2

Correct option is (B) 60

Correct option is D) Tyre

(i) 

1.The percentage of workers employed in agricultural sector was decreased by 21%.

2. The percentage of workers employed in industrial sector was increased by 11%. 

3. The percentage of workers employed in service sector was increased by 10%. 

4. These changes suggest that India is a developing country in its economy,

(ii) 

1. After the planning was started in India, factories came up and started expanding. 

2. People began to use many more goods. 

3. Industrial sector became the dominant sector and the importance of agriculture declined.

4. In the past 50 years, there has been a further shift from industry to service sector.

5. The service sector has become the most important in terms of total production.

The secondary sexual characters in male are 

1.appearance of hairs in pubic areas,under arms,chest and facial hairs like moustache and beard, 

2.Cracking of voice and growth of Adam's apple. 

3.cahnge in body shape i.e. broadening of shoulders and widening of chest

Correct option is (B) Grey