INSECTS
Insects
Insects came into the earth 480 million years ago. There are about 1-2 million species of animals in the world and more than 70 percent of these are insects. Some of their names. Bug, ant, butterfly, dragonfly, bee, fly, ladybug, moth E.T.C.Instead of nostrils, insects breathe through openings in the thorax and abdomen called spiracles. Insects that are diapausing or non-mobile have low metabolic rates and need to take in less oxygen. Insects exchange oxygen and carbon dioxide through spiracles (noted by a circle).
Beneficial insects (sometimes called beneficial bugs) are any of a number of species of insects that perform valued services like pollination and pest control. ... In horticulture and gardening, beneficial insects are often considered those that contribute to pest control and native habitat integration. Bees and butterflies help plants produce seeds, ladybugs eat devastating pests and have even saved citrus crops, and centipedes keep the bug population in your home down.
The number of insect species is believed to be between six and ten million.
Insect bodies have three parts, the thorax, abdomen and head.
Insects have two antennae.
Insects have three pairs of legs.
Some insects, such as gerridae (water striders), are able to walk on the surface of water.
Bees, termites and ants live in well organized social colonies.
Only male crickets chirp.
Insects are cold blooded.
Silkworms are used as the primary producer of silk.
Most insects hatch from eggs.
Some cicadas can make sounds nearly 120 decibels loud.
The life cycle of a mosquito and butterflies features four stages, egg, larva, pupa and adult.Female mosquitoes drink blood in order to obtain nutrients needed to produce eggs.
Bees are found on every continent except Antarctica.
Ants leave trails and communicate with each other using pheromones as chemical signals.
