Tag: biology

Quizzes (1160) Questions (12174)

Questions Related to biology

Multiple choice biology hygiene - a key to healthy life mosquitoes and malaria diseases caused by mosquitoes contaminated water spreads disease

Which of the following is the most common carrier of pathogens?

  1. Bees

  2. Mosquito

  3. Housefly

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

House flies are the vectors of several infectious agents. The pathogen may attach with flies when they sit on the waste materials. They cause typhoid, cholera, salmonellosis, dysentery, tuberculosis, anthrax, and parasitic worms carried to human food on the fly’s body parts or in its regurgitations or defecations.

Therefore, the correct answer is option C.

Multiple choice biology hygiene - a key to healthy life mosquitoes and malaria diseases caused by mosquitoes contaminated water spreads disease

One of the first measures taken to control houseflies is 

  1. The use of aerosols.

  2. Maintaining sanitation.

  3. Setting up fly traps.

  4. The use of insecticides.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Sanitation is the primary method for controlling houseflies because it removes their breeding grounds, such as decaying organic matter and waste.

Multiple choice biology hygiene - a key to healthy life mosquitoes and malaria diseases caused by mosquitoes contaminated water spreads disease

The life cycle of the common housefly follows which pathway?

  1. Egg $\rightarrow $ Pupa $\rightarrow $ Larva $\rightarrow $ Adult fly
  2. Egg $\rightarrow $ Adult fly $\rightarrow $ Larva $\rightarrow $ Pupa
  3. Egg $\rightarrow $ Larva stage 1 $\rightarrow $ Larva stage 2 $\rightarrow $ Adult fly
  4. Egg $\rightarrow $ Larva $\rightarrow $ Pupa $\rightarrow $ Adult fly
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The housefly undergoes complete metamorphosis, which consists of four stages: egg, larva (maggot), pupa, and adult.

Multiple choice biology hygiene - a key to healthy life mosquitoes and malaria diseases caused by mosquitoes contaminated water spreads disease

The housefly also acts as a ___________.

  1. Nutritional source for humans

  2. Predators

  3. Scavengers

  4. All of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

House Flies are generally, found feeding and breeding on trash and rotten food where they get attached to several pathogens which is further transmitted by these flies to a healthy host.  As houseflies and their larvae feed, on dead remains of plants and animals. So, they act as a scavenger.

Multiple choice biology hygiene - a key to healthy life mosquitoes and malaria diseases caused by mosquitoes contaminated water spreads disease

What sanitation measures should be taken to eliminate housefly?

  1. Food should be covered properly.

  2. Garbage cans should have tight lids.

  3. Buildings should be screened.

  4. All of the above.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Effective housefly control requires a combination of measures, including covering food, securing garbage, and screening buildings to prevent access and breeding.

Multiple choice biology hygiene - a key to healthy life mosquitoes and malaria diseases caused by mosquitoes contaminated water spreads disease

Pressurised irrigation system has the advantage of.

  1. Washing away pests from the plants

  2. Conservation of water to maximum extent

  3. Conservation of fertilizer in the soil

  4. Production of hydroelectricity
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Pressurized irrigation systems, such as sprinklers, can help wash away pests like aphids and mites from the leaves of plants.

Multiple choice biology hygiene - a key to healthy life mosquitoes and malaria diseases caused by mosquitoes contaminated water spreads disease

The thorax of housefly contains ........... pairs of legs.

  1. One

  2. Two

  3. Three

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

Housefly belongs to the largest phylum known as arthropoda which is characterized by joint appendages. The thorax of housefly contains three pairs of legs. The legs have sharp claws and spines which help the fly to cling to objects.

So, the correct answer is option C.

Multiple choice biology hygiene - a key to healthy life mosquitoes and malaria diseases caused by mosquitoes contaminated water spreads disease

Houseflies are important in breaking down of 

  1. Food

  2. Carbon bonds

  3. Decaying material

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

Houseflies belong to a group of flies called filth flies because they get food from breaking down decaying material. Such type of nutrition is called a saprophyte. If there were no saprophytes, then there would be no top soil for plants to grow in. 

Multiple choice biology hygiene - a key to healthy life mosquitoes and malaria diseases caused by mosquitoes contaminated water spreads disease

Adult housefly can also be known as

  1. Pupa

  2. Imago

  3. Puparium

  4. Maggot
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Housefly undergoes several phases during metamorphosis. The mature egg turns into a larva which grows to pupa which finally forms an imago. Imago is generally colourless. Its wings are colourless and immobile.

So, the correct answer is option B.