Baseball Review Fishes,

Amphibians & & ReptilesReptiles

Baseball Review Fishes,

Amphibians & & ReptilesReptiles

Grade 6Grade 6

What is a Vertebrate?What is a Vertebrate?

• connective tissue that is softer than bone, but flexible and strong

• cartilage

• vertebrates are part of the ______ phylum

• chordate

• connective tissue that is softer than bone, but flexible and strong

• cartilage

• vertebrates are part of the ______ phylum

• chordate

What is a Vertebrate?What is a Vertebrate?

• 3 characteristics that vertebrates have at some point in their lives

1. notochord 2. nerve cord 3. pharyngeal slits • vertebrate’s internal skeleton• endoskeleton

• 3 characteristics that vertebrates have at some point in their lives

1. notochord 2. nerve cord 3. pharyngeal slits • vertebrate’s internal skeleton• endoskeleton

What is a Vertebrate?What is a Vertebrate?

• animal whose body does not produce much internal body heat

• ectotherm

• animal whose body controls and regulates its temperature by controlling the internal heat it produces

• endotherm

• animal whose body does not produce much internal body heat

• ectotherm

• animal whose body controls and regulates its temperature by controlling the internal heat it produces

• endotherm

What is a Vertebrate?What is a Vertebrate?

• 3 types of ectotherms1. fish 2. amphibian 3. reptile

• 2 types of endotherms1. birds 2. mammals

• latest group of vertebrates to appear• birds

• 3 types of ectotherms1. fish 2. amphibian 3. reptile

• 2 types of endotherms1. birds 2. mammals

• latest group of vertebrates to appear• birds

What is a Vertebrate?What is a Vertebrate?

• earliest group of vertebrates • jawless fish

• 3 functions of a vertebrate’s backbone1. support & protect the body2. help give shape to the body3. give muscles a place to attach

• earliest group of vertebrates • jawless fish

• 3 functions of a vertebrate’s backbone1. support & protect the body2. help give shape to the body3. give muscles a place to attach

FishesFishes

• ______ move oxygen from the water into a fish’s blood

• gills

• fish spend most of their time _______• hunting for food or feeding

• most fish have ___________ fertilization• external fertilization

• ______ move oxygen from the water into a fish’s blood

• gills

• fish spend most of their time _______• hunting for food or feeding

• most fish have ___________ fertilization• external fertilization

FishesFishes

• biologists classify fishes into what 3 major groups

1. jawless fishes2. cartilaginous fishes3. bony fishes

• biologists classify fishes into what 3 major groups

1. jawless fishes2. cartilaginous fishes3. bony fishes

FishesFishes

• type of fish that do not have, scales or pairs of fins

• jawless fishes

• 2 examples of jawless fishes • hagfish & lamprey

• skeletons made of cartilage• cartilaginous fish

• type of fish that do not have, scales or pairs of fins

• jawless fishes

• 2 examples of jawless fishes • hagfish & lamprey

• skeletons made of cartilage• cartilaginous fish

FishesFishes

• 3 examples of cartilaginous fish1. sharks2. rays3. skates

• 3 examples of cartilaginous fish1. sharks2. rays3. skates

FishesFishesFishesFishes

• have skeletons made of hard bone• bony fish• organ that helps bony fish stabilize

their body at different depths• swim bladder• force that water exerts upward on

any underwater object• buoyant force

• have skeletons made of hard bone• bony fish• organ that helps bony fish stabilize

their body at different depths• swim bladder• force that water exerts upward on

any underwater object• buoyant force

AmphibiansAmphibians

• as amphibians develop into adults, they undergo ____________

• metamorphosis• upper chambers of the heart • atria• lower chamber of the heart• ventricle• amphibians that keep their tails as adults• salamanders

• as amphibians develop into adults, they undergo ____________

• metamorphosis• upper chambers of the heart • atria• lower chamber of the heart• ventricle• amphibians that keep their tails as adults• salamanders

It’s time for the 7th inning stretch !

It’s time for the 7th inning stretch !

Take me out to the ball game,Take me out with the crowdBuy me some peanuts and Cracker Jack,I don't care if I never get back.Let me root, root, root for the home team,If they don't win, it's a shame.For it's one, two, three strikes, you're out,At the old ball game.

AmphibiansAmphibiansAmphibiansAmphibians

• specific environment in which an animal lives

• habitat

• 2 reasons for the decrease in amphibian populations

1. habitat destruction

2. poisons in the environment

• specific environment in which an animal lives

• habitat

• 2 reasons for the decrease in amphibian populations

1. habitat destruction

2. poisons in the environment

ReptilesReptiles

• 3 examples of reptiles1. snake2. lizard3. alligator4. turtle

• 3 reptile adaptations to conserve water1. eggs2. skin3. kidneys

• 3 examples of reptiles1. snake2. lizard3. alligator4. turtle

• 3 reptile adaptations to conserve water1. eggs2. skin3. kidneys

ReptilesReptiles

• watery fluid in which an animal’s wastes are excreted

• urine• # of chambers in a reptile’s heart• 3 chambers• 3 differences between snakes & lizards1. snakes don’t have legs2. snakes don’t have eyelids3. snakes don’t have external ears

• watery fluid in which an animal’s wastes are excreted

• urine• # of chambers in a reptile’s heart• 3 chambers• 3 differences between snakes & lizards1. snakes don’t have legs2. snakes don’t have eyelids3. snakes don’t have external ears

ReptilesReptilesReptilesReptiles

• reptile whose body is covered by a protective shell

• turtle• largest turtles• leatherbacks• largest living reptiles• alligators, crocodiles & their relatives

(crocodilians)

• reptile whose body is covered by a protective shell

• turtle• largest turtles• leatherbacks• largest living reptiles• alligators, crocodiles & their relatives

(crocodilians)

Vertebrate History in Vertebrate History in RocksRocks

Vertebrate History in Vertebrate History in RocksRocks

• hardened remains or other evidence of a living thing that existed in the past

• fossil

• type of rock that fossils occur in most frequently

• sedimentary rock

• scientists who study extinct organisms• paleontologist

• hardened remains or other evidence of a living thing that existed in the past

• fossil

• type of rock that fossils occur in most frequently

• sedimentary rock

• scientists who study extinct organisms• paleontologist

Chapter 3 test

Friday !!!

Study !!!

Chapter 3 test

Friday !!!

Study !!!