Tag: biology

Quizzes (1160) Questions (12174)

Questions Related to biology

Multiple choice biology body movements gait of animals basics of joints joints and type of joints skeleton, joints and muscles

Ulna is a

  1. Long and curved bone

  2. Small slender bone

  3. Very small bone

  4. Very long bone
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
  • The bones of the hand (forelimb) are humerus, radius and ulna, carpals (wrist bones – 8 in number), metacarpals (palm bones – 5 in number) and phalanges (digits – 14 in number),
  • The ulna is a long and curved bone.
  • Proximally, the ulna articulates with the humerus at the elbow joint. Distally, the ulna articulates with the radius, forming the distal radio-ulnar joint.
  • So, the correct answer is 'Long and curved bone'.
Multiple choice biology skeleton, joints and muscles gait of animals basics of joints joints and type of joints skeleton - movement and locomotion

Acetabulum is formed at the point of fusion of bones

  1. Ilium, Ischium

  2. lschium and pubis

  3. Ilium, pubis

  4. Ilium, Ischium, pubis
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

There are three bones of the hip bone that come together to form the acetabulum. Two-fifths of the structure is the ischium, which provides lower and side boundaries to the acetabulum. The ilium forms the upper boundary, providing a little less than two-fifths of the structure of the acetabulum. The rest is formed by the pubis, near the midline.

So, the correct option is 'Ilium, Ischium, Pubis'.

Multiple choice biology modern agriculture modern equipments in agriculture soil quality methods of crop production

In agriculture, .......... is used for weeding and plowing, .......... is used for weeding and sowing and ........... is used for harvesting of crops. Here the implements are respectively

  1. Combine, seed drill and sickle

  2. Hoe, sickle and seed drill

  3. Cultivator, seed drill and sickle

  4. Hoe, seed drill and sickle
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

1) In agriculture ploughing is process of turning up of the soil before sowing to increase the soil fertility.

  • This helps to turn organic matter in the soil to increase decomposition and add nutrients from the organic matter to the soil.
  • It is done using a plough.
2) Sowing is the process of planting, or sowing the seeds into the field.

  • It is done using seed drill.

3) Harvesting is the process of gathering a ripe crop from the fields.

  • Traditional tool used in harvesting was sickle, modern machine used in havesting is combine harvester.

Multiple choice biology modern agriculture modern equipments in agriculture soil quality methods of crop production

.......... is the first step to be followed before growing a crop.

  1. Preparation of soil

  2. Harvesting

  3. Weeding

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A.Preparation of soil - it is bed to grow or cultivate soil.

B.Harvesting - Cutting of plants in a crop.
C.Weeding - removal of weeds in a crop
So, the correct option is 'preparation of soil'.

Multiple choice biology modern agriculture modern equipments in agriculture soil quality methods of crop production

Mulching is a process that helps in

  1. Weed control

  2. Soil fertility

  3. Moisture conservation

  4. Improvement of soil structure
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Mulch is a protective layer of a material layered on top of soil. Mulch can be made of organic materials such as grass, straw, bark, etc. They can also be inorganic such as stones, brick pieces and plastic. Mulching prevents water evaporation from soil hence leads to moisture conservation. Thus, the correct answer is option C.

Multiple choice biology modern agriculture modern equipments in agriculture soil quality methods of crop production

Which of the following wood is not used for making handle of spade? 

  1. Sheesham

  2. Babool

  3. Neem

  4. Mango
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
Sheesham is an expensive wood and an endangered species of wood trees. It is thus not easily available and thus cannot be used to make handles of tools. It is frequently used to make furniture but requires permission from the government because of the ban on the use of sheesham to protect the species.
All other trees are common trees and can be used to make the handle of a spade.
The correct answer is 'sheesham'.
Multiple choice biology modern agriculture modern equipments in agriculture soil quality methods of crop production

Name the tool used for scraping of soil.

  1. Hoe

  2. Plough

  3. Both A and B

  4. Cultivator
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

(A) Hoe- It is a tool which is used for digging and weeding made of a thin metal blade and a long handle. It is also used to break up the surface of the ground.

(B) Plough- It is used by the farmers for cultivation of the soil, and for sowing seed and making furrows. It is made up of a blade at the end which digs the field for planting.
(D) Cultivator- It is used to prepare a proper seedbed for the crop to be buried in. It is also used for loosening the soil.
So, the correct option is 'Both A and B'.

Multiple choice biology modern agriculture modern equipments in agriculture soil quality methods of crop production
Repeated ploughing increases the productivity of crops.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

  • Repeated ploughing makes the soil turn several times and results in plough pan formation in cultivated soil due to the use of heavyweight tillage machinery. The land also loses nutrients from the soil and becomes a plough pan field.

So, the correct option 'False'.