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Animal Diversity-Vertebrates

Across
Egg laying mammals that lack nipples.
Breath on land; can also exchange O2 and CO2 through the skin.
Eat both plants and animals using a variety of teeth.
Organs that filter water from the blood with wastes being excreted as urine.
Give streamlined shape and color.
Fish having jaws and scales as well as skeletons made of cartilage.
Animal whose body does NOT produce much internal heat.
Mammals who give birth during early stage of development, then usually continue to develop in pouch on mother's body.
Reptile whose body is covered by a protective shell that incudes the ribs and backbone.
Insulating layer under contour.
Organ that is a gas-filled sac that helps fish stay stable at different depths.
Ectothermic vertebrate that have lungs and scaly skin; skin, kidneys and eggs of reptiles are adapted to conserve water.
Ectotherms that live in water, have fins and obtains oxygen through gills, have scales.
Meat-eaters with sharp canines that tear flesh.
Down
Ectothermic vertebrate that spends early life in water and adulthood on land.
Fish that have no jaws or scales with skeletons made of cartilage.
Plant-eating mammals with incisors that cut and molars that grind.
Develop from embryo connected to a placenta by an umbilical cord; diverse group based on how they eat and move, as well as other characteristics.
Has jaws, scales, a pocket on each side of head that holds gills, and skeleton of hard bones.
Endothermic vertebrate that has feathers and a four-chambered heart; also lays eggs.
Animal whose body regulates its own temperature by controlling the internal heat.
Legs and lungs develop for adult life; heart is three-chambered with atria and ventricles.
Endothermic vertebrates with a four-chambered heart and skin covered with fur or hair.
Animal with a backbone that is part of an endoskeleton, which supports the body, protects organs and gives muscles a place to attach.
(at some point in their lives) are organisms with a notochord, a flexible rod that supports the chordate's back, a nerve cord, and slits in their throat area.