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Post Darwinian Developments I. Physics 	A. The Age of the Earth

Post Darwinian Developments I. Physics A. The Age of the Earth

Post Darwinian Developments I. Physics A. The Age of the Earth. Post Darwinian Developments I .Physics A. The Age of the Earth 1. 1862 - William Thompson - "Lord Kelvin". Post Darwinian Developments I. Physics A. The Age of the Earth

By ima
(151 views)

Vertebrates

Vertebrates

Vertebrates. Fishes. All fishes are ectotherms. Ectotherms - animals with body temperatures dependent upon the temperature of their surroundings. Fish have a two chambered heart and breath through gills.

By liuz
(110 views)

Vertebrates

Vertebrates

Vertebrates. Fishes. Different types of fishes are grouped into three different classes: jawless fishes cartilaginous fishes bony fishes. - All fishes are ectotherms (cold blooded). Ectotherms - animals with body temperatures dependent upon the temperature of their surroundings.

By teige
(301 views)


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Reptiles and Birds

Reptiles and Birds

Reptiles and Birds. Reptiles . Reptiles Body Plan. Contrary to common belief, reptile scales can be smooth or rough, and they are never slimy. The basic reptilian body plan includes a well developed skull, a backbone and tail, two limb girdles, and four limbs.

By havyn (109 views)

Reptiles and Birds

Reptiles and Birds

Reptiles and Birds. Reptiles. Vertebrate Dry, scaly skin Lungs Terrestrial eggs Strong Limbs. Form and Function. Ectotherms: can’t generate body heat Internal fertilization & eggs Double-loop circulatory system 3 or 4 chamber heart Excretion: uric acid or ammonia.

By kbennett (3 views)

Reptiles and Birds

Reptiles and Birds

Reptiles and Birds. By: Andrea Gamber, Shelly Nolt, and Kaitlyn DeFernelmont, period 1. Reptiles : . Scaly-skinned vertebrates that breathe with lungs and lay eggs that hatch on land. Reptiles Body Plan.

By adamdaniel (273 views)

Reptiles and Birds

Reptiles and Birds

Reptiles and Birds. What were some things that they have in common?. Snakes. Nearly 2/3 of snakes are non-venomous Less than 2% are considered harmful to humans Jacobson’s organ A snake’s skull is made up of several connected bones Snakes have between 100-400 vertebrae.

By ella (119 views)

Reptiles and Birds

Reptiles and Birds

Biology I: Chapter 31-1. Reptiles and Birds. REPTILES. Reptile Characteristics. Subphylum : Vertebrata Dry, scaly skin, and lungs Dry, scaly terrestrial eggs with several membranes. Reptile Characteristics. Backbone Tail Two limb girdles Four limbs Example : iguana. Exceptions.

By hayes-chase (113 views)

Reptiles and Birds

Reptiles and Birds

Reptiles and Birds. REPTILE FACTS. first to adapt completely to land. REPTILE FACTS. scaly skin legs lower (not at 90 o angles) claws ectotherms. REPTILE FACTS. most have three- chambered hearts some have four-chambered hearts which allow for more energy (O 2 blood separate).

By giuseppe-bishop (121 views)

Reptiles and Birds

Reptiles and Birds

Reptiles and Birds. Unit 5 Chapter 26-2. Reddish-Brown Frilled Lizard. http://gladstone.uoregon.edu/~mkrueger/reptiles/types.htm. Reptiles. Major characteristics: 1. Terrestrial 2. Do not need to reproduce in water 3. Have an amniotic egg to provide embryo with moist environment

By toril (174 views)

Reptiles & Birds

Reptiles & Birds

Reptiles & Birds. Ch 31 Turboblaaasssssst . What is a reptile?!. All reptiles evolved from stem reptiles , the first animals to become adapted to life on land Complete life cycles entirely on land, no water required Have dry, scaly skin (protection, prevents water loss)

By trang (133 views)