Tag: zoology

Questions Related to zoology

Discovery of new species has recently picked up due to project _________.

zoology biodiversity, classification and conservation levels of biodiversity environmental conservation and biodiversity biodiversity on earth and in india

  1. Species 2000

  2. Global Biodiversity Information Facility

  3. Agenda 21

  4. Both A and B

Show answer
Correct Option: D
Explanation:

A) Species 2000 is an autonomous federation of taxonomic database custodians which involves taxonomists in the whole world. 

B) The Global Biodiversity Information Facility is an international organization which basically focusses on making scientific data on biodiversity available on the internet.
C) Agenda 21 is an action idea of the United Nations which addresses sustainable development. 
Discovery of new species has recently picked up due to project Species and 2000 and Global Diversity Information Facility.
So, the correct answer is 'Both A and B'.

A continental population of insects has blue, red, green, and black variations. The color is controlled by the interaction of two genes, one with two alleles, the other with three alleles.
A piece of driftwood carrying two green insects and five red insects floats in the ocean for several days and washes up on a small island where the insect species did not previously live. The seven insects establish a new population on the island that increases in number significantly over several generations.
Which of the following statements correctly compares the island population with the original mainland population?

zoology biodiversity, classification and conservation levels of biodiversity environmental conservation and biodiversity biodiversity on earth and in india

  1. Red is dominantly inherited in the island population, while on the mainland green is dominant.

  2. The island population has lower genetic diversity than the mainland population.

  3. The island population is more likely to experience competition with other insect species than the mainland population.

  4. The island population size is increasing, while the mainland population is decreasing.

Show answer
Correct Option: B
Explanation:

It is given that out of blue, red, green and black variations of insects, only red and green insects established a new population on the new island. Since, these four colors are controlled by two genes, new population could have either of colour of insects. It is an example of founder effect. The island population will have lower genetic diversity than the mainland population because small populations usually have less genetic diversity than large population.

Thus, the correct answer is 'The island population has lower genetic diversity than the mainland population.'

If large quantities of domestic sewage is continuously emptied into a small stream, it leads to

zoology environmental science personal and public cleanliness who will do this? basics of water pollution

  1. depletion of oxygen content in stream water

  2. depletion of nutrients in the stream water

  3. enrichment of oxygen content in stream water

  4. increase in the total amount of life in the stream water.

Show answer
Correct Option: A
Explanation:

If large quantities of domestic sewage are continuously emptied into a small stream, it leads to depletion of oxygen content in stream water as microbes that develop to degrade the organic matter shall consume the oxygen and reduces its amount.

So the correct option is 'depletion of oxygen content in stream water'

Water should pretreat before its disposal.

zoology environmental science personal and public cleanliness who will do this? basics of water pollution

  1. True

  2. False

Show answer
Correct Option: A

Body segments are definite and well marked in

zoology our skeletal system and the skin bones and movements joints in the human body joints

  1. Hydra

  2. Tapeworm

  3. Leech

  4. Cockroach

Show answer
Correct Option: D
Explanation:

Cockroach belongs to Arthropoda which is covered by an exoskeleton. The body is divided into three regions head, thorax and abdomen. They have a true coelom and have open spaces known as sinus. The segmentation is internal as well as internal while in hydra, tapeworm and leech only external segments are present 

So, the correct answer is option D.

Which of the following procedures are followed in dairy farm management? 
(i) Regular inspections and visits by veterinary doctors.
(ii) Usage of manure to increase crop yields.
(iii) Adequate environmental condition is provided. 
(iv) Weeding away unproductive and harmful plants from the brood house.

zoology economic biology dairy farm management cattle farming production of food from animals

  1. (i) and (ii)

  2. (i) and (iii)

  3. (iii) and (iv)

  4. All of these

Show answer
Correct Option: B
Explanation:

Dairy farm is the management of animals for milk and its products for human consumption. 

The processes and systems that increase yield and improve the quality of milk are 
Health care and social well being of the animals.

The breed of cow with maximum lactation period in the world is

zoology economic biology dairy farm management cattle farming production of food from animals

  1. Frieswal

  2. Gir

  3. Holstein

  4. Nili Ravi

Show answer
Correct Option: C
Explanation:

Holstein Friesian is the cow of Australian breed and it has the maximum lactation period. It yields around 10,000 L of milk per year.

Hence, the correct answer is 'Holstein'

Which of the following procedures are followed in dairy farm management?

zoology economic biology dairy farm management cattle farming production of food from animals

  1. Regular inspections and visits by veterinary doctors

  2. Usage of manure to increase crop yields

  3. Adequate environmental condition is provided

  4. Weeding away unproductive and harmful plants from the brood house

Show answer
Correct Option: A

Best milk yeilding breed of cattle is

zoology economic biology dairy farm management cattle farming production of food from animals

  1. Red Sindhi

  2. Deoni

  3. Holstein Friesian

  4. Sahiwal

Show answer
Correct Option: C
Explanation:

Holstein Friesians are a breed of cattle, known today as the world's highest-production dairy animals. Originating in Europe, Friesians were bred in Netherlands and more specifically in the two northern provinces of North Holland and Friesland, and North Germany. 

They have distinctive markings, usually black and white or black red in color. The cattle is characterized by good durability, high productivity and high fat and and protein levels in milk, making it a cost-effective and highly profitable livestock on farms around the world. This dairy cattle produced milk 32,740 kg in 365 days. Hence, option C is correct.

Exotic dairy breeds of cattle _________________.

zoology economic biology dairy farm management cattle farming production of food from animals

  1. Are non-indigenous breeds of cattle

  2. Are only found in India

  3. Both A and B

  4. None of the above

Show answer
Correct Option: A
Explanation:

Explanation: Exotic cattle were first introduced into this region by colonial farmers. Thus, the origin of exotic cattle is generally traced back to Europe. The most common exotic dairy breeds in the region are Friesian, Holstein, Ayrshire, Jersey, Guernsey and Sahiwal. However, the Friesian breed predominates.