Transcript M Standard 11- - ALCOSbiologyPowerPoints

Standard 11-A
Classify animals according to type
of skeletal structure and method of
fertilization and reproduction body
symmetry, body coverings, and
PowerPoint by:
location.
Quenton
Mercedes
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invertebrates to vertebrates.
endoskeletons to exoskeletons
internal to external fertilization.
sexual to asexual reproduction.
bilateral to radial symmetry.
COMPARE INVERTEBRATES TO
VERTEBRATES
Vertebrates and Invertebrates.
Vertebrates and Invertebrates
• Vertebrates are
• Invertebrates are
animals with
backbones (shown in
the last slide) these
include: fish,
mammals,
amphibians, birds,
and reptiles
animals without
backbones these
animals include
insects and
mollusks &
sponges.
What is an endoskeleton?
What is an endoskeleton?
• An endoskeleton is an internal supporting
system. All vertebrates have an
endoskeleton. Their skeleton is on the
inside. Endo – means inside
What is an exoskeleton?
is anis aexoskeleton?
•What
An Exoskeleton
skeleton or supporting
structure that is found on the OUTSIDE of
the animal.
• An Exoskeleton is like armor on the
outside
• These animals include: insects,
crustaceans like crabs & lobster, and sea
stars.
Endotherms & Ectotherms
• Endotherms – are warm blooded ( they
•
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maintain their body temperatures from INSIDE
their bodies.
Endo – means inside
Mammals, & birds are the only
endothermic animals
• Ectotherms – are cold blooded ( they get their
body heat from the outside world)
What are Asexual & Sexual
reproduction?
• Asexual
reproduction is when
an organism has
only ONE parent;
Usually a part of a
parent splits off to
from another
organism.
• Sexual reproduction-
the cells of 2
different parents
unite to form the new
organism. (Not
meaning that the
parents have sex ).This
type makes the offspring
more diverse
What is internal and external
fertilization?
• Internal fertilization - the egg
is fertilized inside the female
• External fertilization - the male
and female sex cells come
together outside the female’s
body.
Compare bilateral and radial
symmetry
Bilateral and radial symmetry
• Bilateral symmetry • Radial symmetry• If you divide the
each part that
animal in half, one
side is just like the
other side
radiates from a
central point is
alike.
Bilateral Symmetry Pictures
If divided down the middle, one
half is just like the other half.
Radial Symmetry Pictures
Question Time
Which characteristic are used to determine the
classification of a sea star?
A. Radial symmetry and an exoskeleton
B. Radial symmetry and an endoskeleton
C. Bilateral symmetry and an exoskeleton
D. Bilateral radial symmetry and an endoskeleton
The answer is …….
A. Radial symmetry and
exoskeleton, because it has a hard
outer skeleton and radiating parts
A new organism is discovered. After careful observation,
scientists conclude that it is a mammal. Which 2
characteristics would the organism possess?
A. Endoskeleton and scales
B. Exoskeleton and asymmetry
C. Fur or hair & warm- blooded &
endoskeleton
D. Have live young and radial symmetry
The answer is….
C. Fur or hair and warm blooded & an
endoskeleton.
These are all characteristics of mammals
Study the table below. Which organism is MOST
LIKELY to a clam?
organism
support
respiration
habitat
1
endoskeleton
Gills, skin
aquatic
2
shell
gills
aquatic
3
endoskeleton
Lungs, skin
terrestrial
4
shell
lungs
terrestrial
And the answer is......
• Organism 2- because it has a shell which
is exoskeleton it has gills which allows it to
live in the water.
Which animal ‘s body shape show
bilateral symmetry?
• A. Jellyfish
• B. sea anemone
• C. fish
• D. sea anemone
And the answer is …..
• C- fish because when you cut the fish
down the middle the sides are equal.
Which group of animals contains
members that move using cilia and
flagella?
• A. birds
• B. protists
• C. mammals
• D. amphibians
And the answer is …..
• B- protists
• cilia is a hair like structures and a flagella
has a whip- like tail and protists have both
of these
Which animal has external
fertilization?
• A. human
• B. frog
• C. snakes
• D. whales
And the answer is…..
•B Frogs
• Their eggs are fertilized OUT side of their
bodies.
Which sea animal has radial
symmetry?
• A. Echinoderms (like star fish)
• B. Lobsters
• C. Whales
• D. Humans
And the answer …
•A. Echinoderms – their legs
all RADIATE out from the center
Which animal is a vertebrate?
• A. Reptile
• B. clam
• C. scallop
• D. sponge
And the answer is ….
• A. reptile because it has an internal
backbone
A is correct
• Sea stars have radial symmetry & their
skeleton is on the outside ( exoskeleton)
D. Student 4 was correct
• Amphibians ( frogs) have moist skin & are
cold blooded (ectotherms)
C is correct
• Sharks have cartilage skeletons & eels
have skeletons made of bone
B. organism 2 is a clam
• Clams have a shell, gills to breath and are
aquatic ( live in the water)
A. Student 1
Which animal has an exoskeleton?
• A. bony fish
• B. crustacean (like crabs & lobster)
• C. reptile
• D. birds
And the answer is…..
• B. crustacean because it has an hard outer
structure
Which animal does NOT have
external fertilization?
• A. clams
• B. humans
• C. sponges
• D. insects
Hint: Decide what the question IS asking. It IS asking about the
animal that has Internal Fertilization.
And the answer is…
•A. Humans
• Humans have internal fertilization
(the egg & sperm come together
INSIDE the female)
• When a question asks which one
does NOT do something, then figure
out what you are looking for
Which of the following means
internal supporting system
(skeleton)?
•A. external fertilization
•B. exoskeleton
•C. radial symmetry
•D. endoskeleton
And the answer is…
• D. endoskeleton because the skeleton is
found on the inside of the organism
C. The fish
• If you cut the fish in half down the middle
one side is just like the other side
C.
Flagella are used for
locomotion
What is an invertebrate?
• A. bird
• B. human
• C. dog
• D. clam
And the answer is…
• D. clam because it does not have a
backbone or a spinal column