Term
| all birds have feathers and lay eggs |
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Definition
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Term
| What are bird eggs made of? |
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Definition
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Term
| group of eggs laid by a female bird |
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Definition
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Term
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Definition
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Term
| Why are bones often joined together? |
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Definition
| to give them extra strength |
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Term
| What do feathers help birds do? |
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Definition
| maintain their body temperature |
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Term
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Definition
| when a bird rubs oil all over it's feathers |
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Term
| What moves up and down and back and forth? |
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Definition
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Term
| What is curved on top and flat on bottom |
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Definition
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Term
| What do the shape of wings provied? |
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Definition
| an upward push called lift for flight |
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Term
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Definition
| swimming, flying, and balance |
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Term
| What are 2 lungs connected to? |
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Definition
| baloonlike air sacs which reach into many body parts, including some bones |
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Term
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Definition
| when birds both inhale and exhale |
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Term
| What is large and beats rapidly? |
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Definition
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Term
| How many chambers are in the birds heart, arteries, capillaries, and veins that circulate the blood? |
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Definition
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Term
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Definition
| food source, pets, pest control, flower pollinators, or seed deipersers. |
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Term
| What are human uses for birds? |
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Definition
| meat and eggs, feathers for clothing and mattresses, guano (poop) for fertilizer, and to keep as pets |
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Term
| Where have many birds developed from? |
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Definition
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Term
| What is the oldest birdlike fossil? |
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Definition
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Term
| What is a possible ancestor of birds? |
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Definition
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Term
| What are someways that birds are simialr to eachother and ways that they are different from one another? |
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Definition
Similar- feathers, scales, r(v)eprol, body systems, organs.
Difference- size, habitat, human use, diet, and function in nature |
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Term
| have hair and produce milk for young |
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Definition
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Term
| What produces hair or fur, horns, claws, nails, or hooves? |
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Definition
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Term
| What gland makes milk for feeding young? |
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Definition
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Term
| What do other glands nclude? |
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Definition
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Term
| incisors, canines, premolars, and molars |
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Definition
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Term
| How many of the 4 teeth do omnivores have? |
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Definition
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Term
| What kind of teeth do carnivores have for eating meat? |
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Definition
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Term
| What animal has premolar and molar teeth used to eat plants? |
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Definition
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Term
| What traps air to keep mammals warm? |
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Definition
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Term
| What helps mammals sense their environment? |
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Definition
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Term
| What do whales rely on since they have almost no hair? |
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Definition
| a layer of fat called blubber to stay warm |
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Term
| What are modified hairs that protect mammals from predators? |
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Definition
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Term
| What system has a four-chambered heart, blood vessels throughout the body, and lungs with millions of microscopic sacs. |
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Definition
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Term
| What is the nervous system composed of? |
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Definition
| brain, spinal cord, and nerves |
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Term
| What depends on the mammal's diet? |
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Definition
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Term
| How do mammals reproduce? |
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Definition
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Term
| How do most mammals give birth? |
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Definition
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Term
| What do young mammals feed on while learning new skills? |
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Definition
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Term
| What lay eggs and have no nipples on the mammary glands? |
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Definition
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Term
| What gives birth to immature young that usually feed and develp in their mither's pouch? |
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Definition
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Term
| What develop embryos inside the mother'suterus? |
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Definition
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Term
| How are mammals important? |
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Definition
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Term
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Definition
| control populaions of grazing animals |
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Term
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Definition
| pollinate flowers and distribute seeds |
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Term
| about 65 million years ago when dinosaurs became extinct |
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Definition
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Term
| How can scientists determine a mammal's diet? Explain. |
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Definition
| Scientists can determine an animal's diet by examining the teeth. Carnivores will have incisors and large canine teeth; herbivores with have pre-molars and molars; omnivores will have all four types of teeth. |
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