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Invertebrate Animals

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CHAPTER NEW CHAPTER Invertebrate Animals the BIG idea Invertebrate animals have a variety of body plans and adaptations. 4.1 Most animals are invertebrates. – PowerPoint PPT presentation

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Title: Invertebrate Animals


1
CHAPTER
NEW CHAPTER
Invertebrate Animals
Invertebrate animals have a variety of body plans
and adaptations.
4.1
Most animals are invertebrates.
4.2
Cnidarians and worms have different body plans.
Most mollusks have shells, and echinoderms have
spiny skeletons.
4.3
4.4
Arthropods have exoskeletons and joints.
2
4.1
Most animals are invertebrates.
Invertebrates are a diverse group of animals.
Species of invertebrates live in almost every
environment.
invertebrate
sponge
sessile
larva
CHAPTER RESOURCES
Sponges are simple invertebrates that have
several types of specialized cells.
SECTION OUTLINE
3
invertebrate
4.1
Most animals are invertebrates.
invertebrate
sponge
An animal that has no backbone.
sessile
larva
CHAPTER RESOURCES
KEY CONCEPT SUMMARY
4
sponge
4.1
Most animals are invertebrates.
invertebrate
sponge
A simple multicellular invertebrate animal that
lives attached to one place and filters food from
water.
sessile
larva
CHAPTER RESOURCES
KEY CONCEPT SUMMARY
5
sessile
4.1
Most animals are invertebrates.
invertebrate
sponge
The quality of being attached to one spot not
free-moving.
sessile
larva
CHAPTER RESOURCES
KEY CONCEPT SUMMARY
6
larva
4.1
Most animals are invertebrates.
invertebrate
sponge
A free-living early form of a developing organism
that is very different from its adult form.
sessile
larva
CHAPTER RESOURCES
KEY CONCEPT SUMMARY
7
Cnidarians and worms have different body plans.
4.2
cnidarian
Cnidarians have simple bodies with specialized
cells and tissues.
Most worms have organs and complex body systems.
tentacle
mobile
CHAPTER RESOURCES
SECTION OUTLINE
8
cnidarian
4.2
Cnidarians and worms have different body plans.
cnidarian
tentacle
An invertebrate animal such as a jellyfish that
has a body with radial symmetry, tentacles with
stinging cells, and a central internal cavity.
mobile
CHAPTER RESOURCES
KEY CONCEPT SUMMARY
9
tentacle
4.2
Cnidarians and worms have different body plans.
cnidarian
tentacle
A long, slender, flexible extension of the body
of certain animals, such as jellyfish. Tentacles
are used to touch, move, or hold.
mobile
CHAPTER RESOURCES
KEY CONCEPT SUMMARY
10
mobile
4.2
Cnidarians and worms have different body plans.
cnidarian
tentacle
Able to move from place to place.
mobile
CHAPTER RESOURCES
KEY CONCEPT SUMMARY
11
Most mollusks have shells, and echinoderms have
spiny skeletons.
4.3
Mollusks include bivalves, gastropods, and
cephalopods.
Echinoderms have a water vascular system and tube
feet.
mollusk
gill
lung
echinoderm
CHAPTER RESOURCES
SECTION OUTLINE
12
mollusk
4.3
Most mollusks have shells, and echinoderms have
spiny skeletons.
mollusk
gill
An invertebrate animal with a soft body, a
muscular foot, and a mantle. Many mollusks have a
hard outer shell.
lung
echinoderm
CHAPTER RESOURCES
KEY CONCEPT SUMMARY
13
gill
4.3
Most mollusks have shells, and echinoderms have
spiny skeletons.
mollusk
gill
A respiratory organ that filters oxygen dissolved
in water.
lung
echinoderm
CHAPTER RESOURCES
KEY CONCEPT SUMMARY
14
lung
4.3
Most mollusks have shells, and echinoderms have
spiny skeletons.
mollusk
gill
A respiratory organ that absorbs oxygen from the
air.
lung
echinoderm
CHAPTER RESOURCES
KEY CONCEPT SUMMARY
15
echinoderm
4.3
Most mollusks have shells, and echinoderms have
spiny skeletons.
mollusk
gill
An invertebrate sea animal with a spiny skeleton,
a water vascular system, and tube feet.
lung
echinoderm
CHAPTER RESOURCES
KEY CONCEPT SUMMARY
16
Arthropods have exoskeletons and joints.
4.4
Arthropods, which include insects,
crustaceans,
and arachnids,
are the most abundant and diverse group of
animals.
arthropod
exoskeleton
molting
insect
metamorphosis
CHAPTER RESOURCES
SECTION OUTLINE
17
arthropod
4.4
Arthropods have exoskeletons and joints.
arthropod
exoskeleton
An invertebrate animal with an exoskeleton, a
segmented body, and jointed legs.
molting
insect
metamorphosis
CHAPTER RESOURCES
KEY CONCEPT SUMMARY
18
exoskeleton
4.4
Arthropods have exoskeletons and joints.
arthropod
exoskeleton
The strong, flexible outer covering of some
invertebrate animals, such as arthropods.
molting
insect
metamorphosis
CHAPTER RESOURCES
KEY CONCEPT SUMMARY
19
molting
4.4
Arthropods have exoskeletons and joints.
arthropod
exoskeleton
The process of an arthropod shedding its
exoskeleton to allow for growth.
molting
insect
metamorphosis
CHAPTER RESOURCES
KEY CONCEPT SUMMARY
20
insect
4.4
Arthropods have exoskeletons and joints.
arthropod
exoskeleton
An arthropod with three body segments, six legs,
two antennae, and compound eyes.
molting
insect
metamorphosis
CHAPTER RESOURCES
KEY CONCEPT SUMMARY
21
metamorphosis
4.4
Arthropods have exoskeletons and joints.
arthropod
exoskeleton
The transformation of an animal from its larval
form into its adult form.
molting
insect
metamorphosis
CHAPTER RESOURCES
KEY CONCEPT SUMMARY
22
4.1
Most animals are invertebrates.
I. Most animals are invertebrates.
invertebrate
A. Invertebrates are a diverse group of
organisms.
sponge
B. Sponges are simple animals.
sessile
1. Specialized Cells
larva
2. Reproduction
CHAPTER RESOURCES
KEY CONCEPT SUMMARY
23
Cnidarians and worms have different body plans.
4.2
II. Cnidarians and worms have different body
plans.
cnidarian
A. Cnidarians have simple body systems.
tentacle
1. Tissues and Body Systems
mobile
2. Reproduction
B. Animals have different body plans.
C. Most worms have complex body systems.
1. Segmented Worms
2. Flatworms and Roundworms
CHAPTER RESOURCES
KEY CONCEPT SUMMARY
24
Most mollusks have shells, and echinoderms have
spiny skeletons.
4.3
III. Most mollusks have shells, and echinoderms
have spiny skeletons.
mollusk
gill
A. Mollusks are soft-bodied animals.
lung
1. Bivalves
2. Gastropods
echinoderm
3. Cephalopods
B. Mollusks show a range of adaptations.
C. Echinoderms have unusual adaptations.
1. Spines and Skeletons
CHAPTER RESOURCES
2. Water Vascular System and Tube Feet
KEY CONCEPT SUMMARY
25
Arthropods have exoskeletons and joints.
4.4
IV. Arthropods have exoskeletons and joints.
arthropod
A. Most invertebrates are arthropods.
exoskeleton
1. Exoskeletons and Jointed Parts
molting
2. Complex Body Systems
insect
B. Insects are six-legged arthropods.
metamorphosis
C. Crustaceans live in water and on land.
D. Arachnids are eight-legged arthropods.
E. Millipedes and centipedes are arthropods.
CHAPTER RESOURCES
KEY CONCEPT SUMMARY
26
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