3rd Grade ICSE

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Last edited 37 days ago by Learn LoopHQ.

Chapter: 04. Animals Common Insects

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Answers for Question 1 (Harmful Insects in Home Image)

Three harmful insects shown are: Termites, which eat wood and cause damage to structures and furniture; Mosquitoes, which bite humans to suck blood and can spread diseases like malaria; and Houseflies, which pick up germs from dirty places and contaminate our food, making us ill.

Based on the presence of these insects, it can be inferred that the house might have issues with cleanliness, proper food storage, or maintenance. The stagnant water suggests poor drainage, the cockroach and housefly indicate unhygienic conditions, and the termites suggest a lack of pest control or structural maintenance.

To prevent mosquitoes from causing harm, one specific method is to ensure that water does not collect in any containers or puddles around the house, as stagnant water is where mosquitoes breed.

Answers for Question 2 (Ant Colony Image)

The image shows a large queen ant laying eggs and smaller worker ants engaged in various tasks like carrying food or tending to larvae. Male ants might also be visible, though less prominent.

The image clearly demonstrates that ants live in an organized manner within chambers, dividing up their work. Some ants are focused on reproduction (the queen), while others are dedicated to foraging for food, building, and caring for the young, indicating a strong sense of cooperation and shared responsibility.

Ants are considered “social insects” because they live together in large, organized colonies and work cooperatively for the good of the entire group, with different individuals having specific roles and responsibilities that contribute to the colony’s survival and success.

Answers for Question 3 (Insect Body Parts Image)

The three main body parts of the insect are the Head, which contains the eyes and antennae; the Thorax, the middle section where the six legs and wings are attached; and the Abdomen, the rear part of the body containing most of its internal organs.

The structures extending from the insect’s head are its antennae. Their purpose is to help the insect sense and feel things in its surroundings, playing a crucial role in detecting food, recognizing other insects, and navigating.

The hard outer covering of this insect is called chitin. Its purpose is to provide a protective armor for the insect’s soft body inside, offering support and preventing desiccation (drying out).

Answers for Question 4 (Butterfly Life Cycle Image)

The four main stages of the butterfly’s life cycle shown are: 1. Egg, 2. Larva (Caterpillar), 3. Pupa (Chrysalis), and 4. Adult Butterfly.

The primary activity of the butterfly in its larva stage (caterpillar) is to eat continuously and grow rapidly, often consuming large amounts of leaves to store energy for its next developmental phase.

Inside the chrysalis, a process called metamorphosis takes place, where the caterpillar undergoes a remarkable transformation, reorganizing its body into the form of an adult butterfly.

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