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Insects
I.
What Makes an Insect
an Insect?
i. Insects belong to the Phylum
________________.
A. This Phylum also
includes ____________.
B. _________________
have jointed legs
and bodies that are
divided into segments.
ii. Characteristics that all
insects have in common
are:
A. Small Size.
a. Insects range in size from
________mm to over
________mm.
B. Exoskeleton________________________
a. Exoskeleton helps protect
internal organs and helps
prevent_______________.
b. Exoskeleton is made up of
layers.
1. The outside layer
is ____________.
2. The inside layer
is__________ and
acts as an anchor
for insects’_________.
C. Insect bodies are made
up of three segments.
a. __________ - where the
eyes, antennae and mouth
are located.
b. _________ - where the
legs and wings are
attached.
c. Abdomen- is the rear end
of the insect.
D. Most insects have
___________ legs.
E. Wings
a. Insects are the only
__________ that can fly.
b. Wings help insects:
1. Find new places to live.
2. ___________________
3. ___________________
4. Find mates.
c. Some insects do not have
wings but most have _______
pair.
d. Insects are grouped into their
Order based on the
arrangement of the _________
in the wing.
F. Eyes
a. Compound eyes ______________________
1. Compound eyes can
recognize_________
pattern, and _________.
b. Simple eyes- an eye
containing a single lens.
c. Some insects have both
compound and simple eyes.
d. Entomologist ____________________.
G. Antennae____________________
H. Hair
a. Hairs are connected to the
________ and are sensitive to
movement, ____________, and
sound.
I.
Insect Blood
a. Insects have a simple heart
that pumps blood through
________ body cavities.
b. The blood is colorless and
does ______ carry _______
because it lacks________.
c. The blood does carry
dissolved food to the _______
and carries off __________.
J. Pheromones _______________.
a.
Two functions of
pheromones are:
1. Attract the opposite sex.
2. ______________
II. Finding a Place to Live
i. There are millions of different
kinds of insects and many times
as many waiting to be found.
ii. Habitat is an animal’s home
and provides insects with:
A. Food
a. Four types of
mouthparts.
1. ___________ - jaws that
move sideways that chewing
insects have.
2. ___________ - adapted for
sucking blood or sap.
3. ___________ - works like a
sponge and soaks up liquid
food.
4. ___________ - long tube like
mouth for sucking nectar from
flowers.
B. Oxygen
a. Insects do not have lungs; instead, they
have _______ tiny openings on both sides of
the _________ and _________ in which air
enters.
1. The spiracles are connected to
_______.
2. Some aquatic insects have one of the
following:
i. Thin exoskeleton that allows
oxygen to seep into their bodies.
ii. ___________________
iii. ___________________
iv. Bubble of air that they carry
as they dive.
C. ____________ - a
place to live that is
protected from enemies,
bad weather, and drying
out.
D. Water
a. Most insects get water from
____________.
b. Others drink water.
E. Insects require certain
living conditions:
a. ___________ - the amount of
heat in the air.
b. ___________ - the amount of
water in the air.
c. Sunlight.
d. Soil
e. __________ - edible plants.
f.
III. Staying Alive
i. Adaptations that have contributed to the
success of insects are:
A. Because of their small size, insects
can live in places where other
animals cannot.
B. Hard exoskeleton protects them
from being eaten and drying out.
C. Because insects have ______
reproductive rates, they can _______
more quickly to new situations.
a. Pomace flies have 25
generations in one year. That
means that the population
could be as big as ________
flies.
D. _________ is the ability to
hide or disguise oneself from
being eaten or seen.
E. Some insects have defense
adaptations such as:
a. _______________ - found in
bombardier beetles and skunk beetles.
b. _______________ - found on ants,
tiger beetles, and hellgrammites.
c. _______________ - found on bees
and wasps.
d. _______________ - found in blister
beetles and some caterpillars.
F. _________ - is the ability
to look like something that
your not.
G. Some insects can escape
their enemies because
their legs are adapted for
_________.
H. Some insects have
unexpected tricks that
allow them to surprise their
enemies.
I. Insects such as _________
and ______ freeze or play
dead when enemies try to
attack.
IV. People and Insects
i. Why people like insects:
A. Pollinators
B. Provide materials
C. Control pests
D. Provide food for other
animals
E. Treat Diseases
F. Good indicators of water
pollution
G. They are fascinating
subjects
ii. Why people do not like
insects:
A. Attack and eat crops
B. Spread plant diseases
C. Transmit diseases to other
animals
D. Infest households
E. Bite or sting
F. Ruin stored crops
G. Pesticides can harm other
animals
V. ___________ - uses a
variety of pest control
techniques to create a more
efficient and safe way to
manage insect pests.
A. __________ - animals that will
naturally eat the pest.
B. __________ - bacteria, viruses, and
insects that will kill the pests.
C. Mixed plantings- planting mixed
crops or trees because insects are not
as attracted to the area.
D. Sterile insects – insects that are
able to mate but will not produce
offspring.
E. __________ - getting rid of where
the insects live
F. __________ - natural chemicals that
can prevent the insect from growing
into a sexual mature adult.
G. Using chemicals such as pesticides
only as needed.
H. Regulating planting and harvesting
to times when pests are least
abundant.
I. Removing eggs, larvae, cocoons, and
adults from plants by __________.
J. ___________ - natural or synthetic
chemical attractants that attract or
confuse pests.