Question

What helps them to breathe a caterpillar?

Answer 1

Hint: Caterpillar refers to the intermediate larval stage in various species of lepidoptera. Most of the caterpillars are herbivores and thus are found on the surface of leaves. The caterpillars have a very soft body. The segments of the body of the caterpillar consist of various holes. Caterpillar uses these holes or pores to respire.

Complete answer: The breathing process is an essential part of sustaining life. The caterpillars are soft-bodied cylindrical organisms generally found lurking over leaves or fruits of plants. These are intermediate stages between the egg and cocoon of the lepidoptera species including butterflies and moths. Most of the caterpillars are herbivores, but some are carnivores or exhibit cannibalism. As their body is very soft and fragile they have specialized anatomy that allows them to survive normally. The caterpillars have segmented bodies. These segments have minute holes or pores on each side of them. These pores are called spiracles. The gaseous exchange takes place through spiracles. The contraction of the muscles of the caterpillar regulates the opening and closing of the spiracles. Usually, spiracles are found in pairs in the first thoracic region. The first eight abdominal segments of a caterpillar also contain spiracles in 8 pairs each.

Earthworms can have a hairy or smooth body having various colors. Every type of earthworm consists of different sizes and shapes of spiracles. But despite their distinct appearances, all the caterpillars breathe through the spiracle by diffusion of gases. Therefore, we can conclude that spiracles are the organs that help the caterpillar to breathe.

Note: Caterpillar stage exists for a few days after which it transforms into a cocoon having hard covering. Over time, the caterpillar inside the cocoon develops into an adult butterfly or moth that cracks open the cocoon. Many cocoons are beneficial for humans, as in a silkworm the cocoon produces silk to wrap itself. This silk is separated and used in the textile industry. Also, many caterpillars are used as biological control agents for pest plants.