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vertebrates #2

more on reptiles, birds, and mammals

What is true about the skin of reptiles covered with scales... sometimes hard to grow larger so must molt
in the amniotic egg or mammals what is the membrane around the embryo that is filled with fluid and protects the embryo... this mimics the aquatic environment amnion
what is true about the protective shell covering in reptiles and birds they both have a hard covering around the egg to prevent it from drying out and to give protection. the reptile is leathery and the bird has a shell made of minerals ( calcium carbonate)
What is true about the circulation of the reptiles ( the loops and the heart) they have a double loop system ( like amphbians and mammals)... they have a 3 chambered heart in most ( it has a little more separation in the ventricle than the amphibian heart)... the crocodilia has a 4 chambered heart ( more efficient)
What helps the reptiles with locomotion on land the toes have claws, they have heavier, stronger bone structure to bear more body weight on land)... the legs are moving underneath the body for better locomotion
How is a lizard different from a snake lizards have legs with clawed toes, moveable eyelids, a tympanic membrane ( an eardrum on the side of their head), and longer tails
what name is given to a turtle that lives on land tortoise
What is true about the backbone of a turtle and its teeth the backbone is fused to the shell and they don't have teeth ( they have a beak)
How are crocodilia different from other reptiles they have a 4 chambered heart and they build nests and take care of their young
Birds are the only vertebrates with ? as body coverings feathers
Birds share characteristics with ?... a close relative reptiles (amniotic eggs, and scales on their legs) j
What are bird adaptations for flight being an endotherm, feathers, lightweight but strong bones, a 4 chambered heart and 2 loop circulatory system, and air sacs on their lungs for better oxygenation
what are two unique features of mammals hair and mammary glands
what is found in a mammal that produces and secretes milk to nourish developing young mammary glands
How is the mammal an amniote it doesn't have a shelled egg ... but still has the same membranes to help the embryo develop... a very important membrane is the Amnion
What is true about the teeth of mammals they have specialized teeth for various functions ( canines tear meat, incisors, premolars, and molars... grinding)
what helps mammals to get more oxygen and get rid of the carbon dioxide more efficiently a diaphragm
What is true about the circulation of mammals they have a two loop system ( not new) and a 4 chambered heart
Who are the egg laying mammals with poorly developed mammary glands monotremes
who are the pouched mammals with a short gestation in the uterus and then crawl into the pouch to complete development and get nourishment marsupials
What structure develops between the mother and the developing embryo of many mammals to provide food and oxygen to and remove wastes from the developing young in the uterus placenta
Is the placenta always in the female placental mammals body? no only during pregnancy... it is expelled after birth
What portion of a herbivore digestive tract has bacteria located within to help digest the cellulose cecum
Which mammal has a short digestive system because their diet is easy to digest and they don't have a cecum insectivore ( like a mole)
which mammal has a stomach that starts digestion and absorption of nutrients and they have a large cecum with bacteria to help break down cellulose ( our rat will have this) a nonruminant herbivore
which mammal has a 4 chambered stomach to work on breaking down plant material ( they chew cud... keep bringing it up and chewing it again).. and they have long intestines and a cecum to increase nutrient absorption Ruminants ( deer and cow)
which mammal also has a diet that is pretty easy to digest so they have a shorter intestinal tract ... they have a cecum but it is small and serves to vital function for their digestion a carnivore such as a fox , dog, or cat
Created by: shemehl



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