1804820
Descrição
FlashCards por jessica.laplant79, atualizado more than 1 year ago
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Criado por jessica.laplant79
quase 10 anos atrás
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| Questão | Responda |
| What is the Furcula? | "The wishbone"; a flexible bone that aids in flight. |
| What is the Keel? | A large bone to which the powerful breast muscles attach. |
| What bones of the bird have the same names as their human counterparts? | Leg bones (femur, tibia, fibula) and wing bones (humerus, radius, ulna). |
| What is the function of a birds kidneys? | Helps filter nitrogenous wastes, but doesn't eliminate urea (urine) like humans! |
| How do birds eliminate nitrogenous wastes? | In the form of uric acid, aka the white stuff on your car. (Ew, I'm going to wash my car... Oh wait) |
| How many chambers does a birdie heart have? | Four, just like mammals. |
| Why do birds rely on their higher metabolic rate? | To increase the speed of nerve cells. |
| What parts of the bird help maintain the body temperature? | Feet and legs |
| Why do some birds extend and expose their wings in extreme heat? | To regulate body temps (ex. Least Tern) |
| What makes a bird's respiratory system so efficient? | Air flows in only one direction, and they are equipped with elaborate system of air sacs. |
| What is the Syrnx? | Key part of avian anatomy. Located at the base of the trachea and is responsible for bird vocalizations. |
| What are ways birds maintain body temp? | Legs, feet, exposing and extending wings. |
| Where does the fertilization of the eggs occur? | Internally, in the oviduct. |
| What is the shortest amount of time between fertilization and laying of eggs? | 24 hours |
| How are avian chromosomes designated? | Male (ZZ) Female (WZ) |
| What is the typical arrangement for breeding in birds? | One male with one female. |
| What are a few reasons that females may choose males? | Territory or competition, but sometimes choice is completely unrelated. |
| What is a lek? | A place that females choose males. Think single's bar: men strut their stuff. More colorful and large feathers may create thought: this guy has good genes. |
| How does incubation work? | Varies. Usually split, but sometimes left to one parent. Females will shed fathers and create a "brooding patch". |
| What are some places that nesting success is higher? | Higher altitudes and holes. Helps when bird is larger. |
| What is cooperative breeding? | When nonbreeding birds work together breeding pairs to raise young? |
| Types of nests? | There are cavity nesters, cup nesters, and scrape nesters like the Least Tern. |
| What is brood parasitism? | Behavior of laying eggs in different nests. These eggs will usually crowd out or kill other birds. |
| What is the difference between altricial young and precocial young? | Altricial= "young, blind, and helpless" Precocial= may leave the nest within days of hatching |
| Describe the terms of bird development in order from youngest to oldest. | Hatchling, Nestling, Fledgling, Immature, and Mature/Adult. |
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