Noninsect arthropods

12%

Insects

73%

Nonar thr opoth inver tebr ates

11%

Ver tebr ate 4%

Insects (73%)

Vertebrate (4%)

Nonarthropothinvertebrates (11%)

Noninsect arthropods(12%)

Insects are animals other than humans have the Insects are animals other than humans have the greatest impact on the activities of this planet.greatest impact on the activities of this planet.

Insects contains more species than any other Insects contains more species than any other group of animals.group of animals.

The insects cover an incredible variety of life The insects cover an incredible variety of life forms.forms.

Insects have a body divided into three Insects have a body divided into three parts- head, thorax, and abdomen.parts- head, thorax, and abdomen.

Insects have chemical receptors for taste Insects have chemical receptors for taste and smell on their mouthparts, as might be and smell on their mouthparts, as might be excepted.excepted.

Insects have three pairs of appendages that Insects have three pairs of appendages that are used as mouthparts.are used as mouthparts.

The growth and development of insects usually The growth and development of insects usually involve metamorphosis, which is a process of involve metamorphosis, which is a process of changing shape and form.changing shape and form.

Insects undergo either incomplete metamorphosis Insects undergo either incomplete metamorphosis or complete metamorphosis. These immature or complete metamorphosis. These immature forms are called nymphs (NIMFS).forms are called nymphs (NIMFS).

Many insects, such as bees, moths, and beetles, Many insects, such as bees, moths, and beetles, undergo a more dramatic change in body form undergo a more dramatic change in body form during a process called complete metamorphosis.during a process called complete metamorphosis.

The DifferentsThe Differents

Insects and HumansInsects and Humans__ Termites destroy wood Termites destroy wood

structures, moths eat their structures, moths eat their way through wool clothing way through wool clothing and carpets, and bees and and carpets, and bees and wasps produce painful stings.wasps produce painful stings.

__ Only female mosquitoes bite Only female mosquitoes bite humans and other animals to humans and other animals to get a blood meal for their get a blood meal for their developing eggs.developing eggs.

__ Male mosquitoes do not bite; Male mosquitoes do not bite; they feed on nectar.they feed on nectar.

Insect CommunicationInsect Communication__ Insects communicate using Insects communicate using

sound, visual, chemical, and sound, visual, chemical, and other types of signals.other types of signals.

__ A light- producing organ in the A light- producing organ in the abdomen is used to produce a abdomen is used to produce a distinct series of flashes.distinct series of flashes.

__ Many insects communicate using Many insects communicate using chemical signals and these chemical signals and these chemicals are called chemicals are called pheromones.pheromones.