13.2 Amphibians and reptiles are adapted for life on land.

Vocabulary: amphibian, reptile, ectotherm

13.2 Reveiw
1. limbs, lungs, sensory organs adapted for land
2. born with lungs, eggs have shells
3. Its body temperature should go down. The water will cool its body.
4. Diagrams should include adaptations, methods of reproduction, and how animals obtain oxygen.
5. Sample answer: a more streamlined body in sea turtle, webbing on feet of sea turtle, better underwater eyesight and other senses, and more lung capacity in sea turtle
6. Answers should include how environmental factors affect survival rates.

Bullying

BBC HD - Life 2009 - Ep 2 - Reptiles and Amphibians-00

BBC HD - Life 2009 - Ep 2 - Reptiles and Amphibians-01

Reptiles

Vertebrates are animals with endoskeletons.

Vocabulary: vertebrates, endoskeleton

13.1 Review
1. because they have an endoskeleton that includes vertebrae, or a backbone
2. gills, a swim bladder, a lateral line, fins, streamlined body
3. Jawless: no jaw, tube-shaped body;
Cartilaginous: skeleton made of cartilage
Bony: skeleton made of bone, scales
4. Sample Answers: similar coloration, body shapes, and similarities in behavior
5. A fish tht retained the eggs inside its body would produce fewer eggs than one that laid its eggs in water. However, eggs protected inside the parent´s body would be less vulnerable to predators.
6. Sharks are very well adapted to their environment and have been able to meet their needs without changing.

Vertebrates

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Ch. 18.1 The Respiratory System

Lesson Vocabulary: respiratory system, cellular respiration
18.1 Review
1. in the respiration process, to release energy
2. Nose, throat, trachea, and bronchial tubes carry air in and out of the lungs, where gas exchange occurs. Diaphragm and ribs move to cause lungs to expand.
3. also filters air and aids in speaking, couphing, sneezing
4. Diaphragm relaxes up to its original position, pushing lungs upward. At the same time, ribs move inward, collapsing lungs inward. Air moves out of lungs through bronchial tubes into trachea, then into throat and out nose or mouth.
5. Air you inhale contains more O2 and less CO2 than air you exhale.
6. Energy is expended when you exercise; rapid breathing brings more O2 into the body, which can add more energy.