Transcript Objective 4.1 Book 200 point Project Grade

Objective 4.1 Book
200 point Project Grade
7th grade science
Denton Middle School
Ms. Hutchens
Cover page
Objective 4.1:
Classify animals according to the type of skeletal
structure, method of reproduction and
fertilization, body symmetry, body covering,
and locomotion.
Name
Date
Period
Table of Contents
Sponges………………..1
Cnidarians…………….2
Worms………………….3
Mollusks……………….4-5
Birds……………………..6
Mammals……………..7
Arthropods……………8-9
Sponges (Page 1)
• invertebrate animals that usually have no
body symmetry and never have body tissues
or organs.
• filter feeders that are able to reproduce both
sexually, utilizing external fertilization, as well
as asexually utilizing budding.
• belong to the phylum Porifera.
• Adult sponges are not able to move.
Examples:
Cnidarians (Page 2)
• a phylum of invertebrate animals that have
stinging cells and take food into a central body
cavity.
• The stinging cells allow them to capture food and
defend themselves.
• exhibit radial symmetry.
• Many adults can move to escape danger and
capture food.
• able to reproduce sexually, utilizing external
fertilization, as well as asexually, mostly through
budding.
• Examples include coral and sea anemones.
Examples
Worms (Page 3)
• invertebrates that have long, narrow bodies
without legs.
• exhibit bilateral symmetry.
• have tissues, organs, and organ systems.
• reproduce both sexually and asexually.
• divided into three groupso flatworms (phylum Platyhelminthes)
o roundworms (phylum Nematoda)
o segmented worms (phylum Annelida)
Examples
Mollusks (Page 4-5)
(phylum Mollusca)
• invertebrates with soft, unsegmented bodies
that are often protected by a hard outer shell.
• bilateral symmetry.
• 3 major groups of molluskso Gastropods (Snails)
• have a single external shell or no shell at all.
• move by the use of a muscular foot.
Mollusks (Page 4-5)
o Bivalves (oysters) are
• two-shelled mollusks that utilize filter feeding.
• Adult bivalves stay in one place or move slowly
through the water.
o Cephalopods (octopus)
• ocean-dwelling mollusks whose foot is adapted to
form tentacles around its mouth.
• Not all cephalopods have shells.
• capture prey by using its tentacles and swim by jet
propulsion.
Examples
Birds (Page 6)
(phylum Chordata)
• a class of endothermic vertebrate animals
whose bodies are covered with feathers and
have a four-chambered heart.
• have the ability to fly using their wings.
• have internal fertilization and lay eggs.
• exhibit bilateral symmetry.
• Most parent birds will care for their young
until they are able to fly.
Examples
45 minute clip on Birds
• http://player.discoveryeducation.com/index.cf
m?guidAssetId=B00AB5CE-AF5C-4EAA-92D5EA986AE921DE&blnFromSearch=1&productco
de=US
Mammals (Page 7)
(phylum Chordata)
• class of endothermic vertebrate animals that have a
four-chambered heart and skin covered with fur or
hair.
• Most are born alive and is fed with milk produced by
the mother.
• Most walk or run on four limbs.
• have bilateral symmetry.
• classified into three groups based on how their
young develop: monotremes, marsupials, and
placental mammals.
• usually care for their young for an extended period of
time.
• All reproduce with internal fertilization.
Examples
Arthropods (Page 8)
(phylum Arthropoda)
• invertebrates that have an external skeleton, a
segmented body, and jointed appendages.
• They have bilateral symmetry and most
reproduce sexually.
• Arthropods have mouthparts that are
specialized for chewing their food.
• Most arthropods have the ability to move
through the use of legs.
Arthropod Groups (Page 9)
• Major groups of arthropods:
o crustaceans (crab and shrimp),
o arachnids (Spiders and Ticks)
o centipedes and millipedes
o insects (mosquitoes, bees, and grasshoppers).
– have wings that allow for flight.
Examples