Insects & Arachnids

How many antennae do all insects have?

2 antennae

How many pairs of legs do millipedes have?

2 per segment

What are 4 characteristics of insects?

3 body sections, 6 legs, 1 pair of antennae, 1-2 pairs of wings

How many pairs of legs do arachnids include?

4

How many legs does an insect have?

6

How many legs do arachnids have?

8

What are 4 characteristics of arachnids?

8 jointed appendages, exoskeleton, segmented body with 2 parts, developed head

All arachnids have...

8 legs

Which creatures below are insects?

Bees, butterflies, grasshoppers, ladybugs

How are centipedes and millipedes different?

Centipedes have 1 pair of walking legs per segment, and are carnivores. Millipedes have 2 pairs of walking legs per segment, and are herbivores.

How are an insect's compound eyes different from its simple eyes?

Compound eyes have many lenses and are especially keep at sensing movement. Simple eyes have only one lens and are used for seeing light and dark. Some can't form images.

What are three main body parts of an insect?

Head, thorax, abdomen

What is one reason why spiders are not classified as insects?

Insects have 6 legs but spiders have 8

Where are arachnids found?

Land, Freshwater, Desert

Name three arachnids

Spider, tick, mite

How do spiders obtain and digest their food?

The spider injects venom into the prey through its hallow fangs. The venom turns the prey to mush, and the spider using its fangs like drinking straws to suck up the mush.

What is one way insects are helpful?

They eat other insects

What is one way insects are harmful?

They spread diseases.

What is the overall impact of insects on humans?

While insects can be harmful to humans, they're mostly beneficial or harmless.

A characteristic of an insect that helps it survive

adaptation

What part of an insect's body help it smell and feel?

antennae

Name a type of arthropod without antennae.

arachnid

What is a spider?

arachnid

Which organisms have two body segments and four pair of jointed appendages?

arachnids

What Greek word means "jointed foot"?

arthropod

Which phylum contains the largest number of animals?

arthropod

What do most insects use sound for?

attracting mates

What function does sound serve for many insects?

attracting mates

Although some insects are harmful, most are ___________.

beneficial

What are 3 characteristics of arthropods?

bilateral symmetry, open circulation, molting of exoskeleton

Spraying pesticides on a lawn is not __________ control.

biological

The ability of an insect to produce light is called _______________.

bioluminesence

Almost all arachnids are

carnivores

Arachnids have a...(a head and thorax fused together)

cephalothorax

What type of metamorphosis does a butterfly go through?

complete metamorphosis

What type of insect eye has multiple lenses and senses movement?

compound eye

What type of bee(s) is/are male?

drone

What are insect larvae specialized for?

eating and growing

How do insects help farm crops?

eating harmful insects, pollinating

An infant arachnid will hatch from

egg

List the stages of complete metamorphosis.

egg, larva, pupa, adult

Name the four stages of complete metamorphosis.

egg, larva, pupa, adult

Name the three stages of incomplete metamorphosis.

egg, nymph, adult

What kind of skeleton do arthropods have?

exoskeleton

All arachnids are spiders. (true or false)

false

True or False? A spider is an insect.

false

True or False? All insects look exactly the same.

false

True or False? Insects are the smallest group of animals on earth.

false

What type of bee can sting?

honey bee

Which insect produces honey that we can eat?

honeybee

What is the process of an insect changing into it's adult form?

metamorphosis

What does a nymph do when it outgrows its exoskeleton?

molting

Can all insects fly?

no

An insect form that looks like a tiny adult when it hatches is called a _____.

nymph

What type of circulatory system do insects have?

open circulatory system

What do centipedes eat?

other arthropods

What type of coloring helps insects hide from predators?

protective coloring/camouflage

What are 6 ways in which insects protect themselves and the insects that use these methods?

protective exoskeleton (all insects), running or flying away (fly), smelling or tasting bad (stinkbugs), stinging (bees, wasps), using camouflage (grasshoppers, caterpillars, walking sticks), resembling larger animals (moth)

What are 3 different types of camouflage? Explain each type.

protective form - having a structure similar to habitat, protective coloration - matching the color of the habitat, warning coloration - colors (usually red, orange, yellow) that warn predators that the insect is poisonous

What type of bee lays eggs?

queen bee

Spiders use book lungs to perform

respiration

Spider webs are made of...

silk

Spiders can spin webs by using a special...

silk gland

What type of insects cannot survive alone?

social

Name four arachnids.

spider, tic, scorpion, chigger

What carries oxygen in an animal's circulatory system?

spiracles

What does a grasshopper use to get oxygen?

spiracles

_______________ eat and damage wood products.

termites

What segment of an insect has the legs and wings?

thorax

Name a parasitic arachnid.

tic

Arthropods can kill prey by using it's

venomous fangs

What type of bee gathers food?

worker bee

What type of bee(s) is/are female?

worker bee, queen bee