Biology · Environmental Studies

Biology of Insects and Pollination

861 Questions

Insect biology and pollination focus on ecological relationships, crop science, and practical applications like apiculture. These topics regularly appear in general science sections of competitive exams. Review core concepts to build accuracy for test day.

Apiculture and honeyTypes of pollinationInsect binomial nomenclatureCrop damaging pestsFriend of farmers organism

Biology of Insects and Pollination Questions

Multiple choice evs seeds and seeds plant adaptation and modification leaves leaf modification

Which of the following plant traps insect for nutrients?

  1. Lotus

  2. Pitcher

  3. Rose

  4. Tulip
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
Plants that eat insects are called insectivorous plants. They have adapted to grow in places where the soil is thin or poor in nutrients, especially nitrogen. Pitcher plant is the example of an insectivorous plant. In pitcher plant, the leaf is modified to form a pitcher-like structure with several hair-like structures inside it. When an insect sits on the pitcher of the plant, the lid closes and the insect gets trapped inside the pitcher.
So, the answer is B.
Multiple choice evs seeds and seeds plant adaptation and modification leaves leaf modification

Insectivorous plants trap insects to 

  1. Meet their potassium requirements

  2. Meet their nitrogen requirements

  3. Meet their phosphorous requirements

  4. Meet their oxygen requirements
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Insectivorous plants trap and digest insects and other small animals to obtain the nitrogen that is required for their growth. Most plants absorb enough nitrogen from nitrates in the soil but as the insectivorous plants live in nitrate-deficient bogs, they need to fulfill their nitrogen demand by digesting the prey instead. 

So the correct option is 'Meet their Nitrogen requirements'

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

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

Housefly feeds on sugar by

  1. Crushing its crystals and then sucking the powder

  2. Crushing and eating

  3. Sucking

  4. Dissolving in saliva and sucking.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
  • Adult houseflies never have chewing mouthparts. They use saliva to change solids to liquids. Sponge-like mouthparts pick up semi-liquid foods, such as feces and decaying matter.
  • Hence Housefly feeds on sugar by Dissolving in saliva and sucking because they do not have chewing mouthparts.
  • So, the correct answer is '.Dissolving in saliva and sucking'.
Multiple choice biology hygiene - a key to healthy life mosquitoes and malaria diseases caused by mosquitoes contaminated water spreads disease

Common House Fly (Musca nebulo) lays eggs on

  1. Cow/Horse dung

  2. Stagnant water

  3. Hanging ropes

  4. Open meats and sweets.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
  • The female housefly usually mates only once and stores the sperm for later use. She lays batches of about 100 eggs on decaying organic matter such as food waste, carrion, or feces.
  • House fly eggs are laid in almost any warm, moist material that will supply suitable food for the larvae. For example, Cow/Horse dung.
  • Hence Common House Fly (Musca nebulo) lays eggs on Cow/Horse dung.
  • So, the correct answer is 'Cow/Horse dung.
Multiple choice biology hygiene - a key to healthy life mosquitoes and malaria diseases caused by mosquitoes contaminated water spreads disease

Houseflies act as a ___________ source for birds.

  1. Protein

  2. Carbon

  3. Mineral

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

Houseflies are generally found feeding and breeding on trash and rotten food where they get attached to several pathogens which are further transmitted by these flies to a healthy host. Housefly pupae contain large amounts of protein and are thus especially beneficial to the various birds, reptiles, and insects that prey on them. 

So, the correct answer is option A.

Multiple choice botany modes of reproduction why do plants reproduce? reproduction and variation the life cycle of plants

Insect's eggs are

  1. Microlecithal and centrolecithal

  2. Megalecithal and isolecithal

  3. Megalecithal and centrolecithal

  4. Megalecithal and telolecithal
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Enormous amount of yolk is present in megalecithal eggs and here yolk is several times greater than cytoplasm and yolk is concentrated in the interior of the egg and the cytoplasm is distributed as a thin layer on the outside of the yolk in centrolecithal eggs. These type of eggs is a characteristic of insects. Hence, option C is correct.

Multiple choice biology butterfly and honey bee life cycle of a butterfly metamorphosis in frogs the life of a butterfly types of reproduction in animals oviparous and viviparous

Natural parthenogenesis is found in.

  1. Housefly

  2. Honeybee

  3. Drosophila

  4. All of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
  • Parthenogenesis is a form of asexual reproduction in which organisms reproduce without fertilization. It is seen to occur naturally in bees.
  •  Drone bees are produced parthenogenetically. Female worker honey bees lay only unfertilized eggs and these eggs result in drone bees. 
  • So, the correct option is 'Honeybee'.
Multiple choice biology butterfly and honey bee life cycle of a butterfly metamorphosis in frogs the life of a butterfly types of reproduction in animals oviparous and viviparous

Butterflies have the typical ______ stage insect life cycle.

  1. One

  2. Two

  3. Three

  4. Four
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

  • Typically, insects including butterflies have 4 stages in their life cycle.
  • The first stage is egg. when the eggs hatch the new insect is called a larva (second stage).
  • The third stage i.e. pupa represents the transition between larva and adult ( fourth stage).
So, the correct option is 'Four'.

Multiple choice botany ecological adaptations, succession and ecological services ecosystem services ecosystems ecosystem

Which of the following method is applicable for pollination in gymnosperms?

  1. Anemophilous

  2. Entemophilous

  3. Hydrophilous

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

Phanerogamae are the sub-kingdom of kingdom Plantae. They include seed bearing and flowering plants. They are further grouped into angiosperms and gymnosperms. Gymnospermic plants are pollinated by wind that is anemophilous.

So, the correct answer is 'Anemoplilous'

Multiple choice

Many of us love honey, but are bees also endangered?

  1. Yes, they are

  2. No, there are still a lot of bees
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Many bee species are currently facing population declines due to habitat loss, pesticides, and climate change, leading to endangered status for several types.

Multiple choice biology the flower structure of a bisexual flower growth and development in plants basics of leaf and flower

Plant honey is secreted by

  1. Digestive glands

  2. Nectaries

  3. Oil ducts

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

Plant honey is secreted by nectaries. Nectar is a sugar-rich liquid produced by plants in glands called as nectaries, either within the flowers with which it attracts pollinating animals or by extrafloral nectaries, which provide a nutrient source to animal mutualists, which in turn provide antiherbivore protection. Common nectar-consuming pollinators include bees, butterflies and moths, hummingbirds, and bats.
Therefore, the correct answer is option B.

Multiple choice biology the flower structure of a bisexual flower growth and development in plants basics of leaf and flower

Nectary of Euphorbia is an example of

  1. Complex tissue

  2. Secretory tissue

  3. Excretory tissue

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

Nectary of Euphorbia is an example of secretory tissue. The tissues that are concerned with the secretion of gums, resins, volatile oils, nectar latex and other substances in plants are called as secretory tissues. These tissues are divided into two groups: laticiferous tissues and glandular tissues. 

Thus, the correct option is B.