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Zoology Unit 9
Birds & Mammals
| Question | Answer |
|---|---|
| ornithology | the study of birds |
| Aves | the class of animals that includes endothermic animals with feathers |
| Avian | of or relating to birds |
| pneumatized wings | rigid, hollow, contain air pockets to make them lighter for flight |
| syrinx | specialized voice box for making sounds in birds |
| air sacs | multiple structures that receive air and provide fresh air on inhaling AND exhaling |
| altricial | naked, helpless young requiring more parental care |
| precocious | young that are more independent very soon after birth |
| ratite | flightless birds including ostriches and emus |
| carinate | birds that can fly |
| body hair | provides insulation, protection and colorating in mammals |
| vibrissae | whiskers; sense movement |
| horns | dead skin with a bone core protruding from the skull; used for defense; found in sheep, goats, cattle, and antelope |
| antlers | entirely bone structure found in some animals; regulates body temperature, attracts mates, intimidates rivals; can be found in deer, elk, and moose |
| sweat glands | maintain body temperature in mammals |
| mammary glands | produce milk to feed young in mammals |
| scent glands | produce odor for communication, warning, defense, or sexual attraction |
| sebaceous glands | produce oil to keep skin and hair soft and waterproof |
| heterodont teeth | having teeth with different sizes and shapes; in mammals |
| omnivore | eat both plants and animals |
| herbivore | eats only plants |
| carnivore | kills and eats prey |
| larynx | voice box; allows for vocalization and communication in mammals |
| monotremes | egg laying mammals such as platypus and echidna |
| marsupials | pouched animals such as kangaroos and koalas; underdeveloped embryo migrates from uterus to pouch where development continues |
| eutherians | placental mammals; nourish their young through the placenta in the uterus and give birth to better developed young after gestation |
| gestation | the developmental time in the uterus before birth |
| estrous | the time when a female is fertile |
| 4 chambered heart | type of circulatory pump found in birds, mammals, and crocodilians |
| lungs | organ of respiration for amphibians, reptiles, birds, and mammals |
| endothermic | also referred to as warm blooded; describes the source of body heat for birds and mammals |
| amniotic egg | egg with membranes surrounding the embryo as well as a shell |
Created by:
Mrs. Meeks SHS
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