CK12 Life Science

(28) http://commons.wikimedia.org/wiki/File:Varanus_komodoensis1.jpg. GNU-FDL. (29) http://commons.wikimedia.org/wiki/Image:Pika ...

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Chapter 14 Birds and Mammals 14.1 Lesson 14.1: Birds Lesson Objectives List and describe general traits of birds. Explain how b ...

and a lightweight skeleton. They also have a wide variety of reproductive strategies among the different types of birds. Let us ...

modified as wings and nearly all can fly. Which of the above traits do you think might be of importance to flight? Adaptations f ...

Reproduction in Birds How do birds reproduce? We are all familiar with the classic chicken egg. So what is involved in the proce ...

in areas that are hidden, in order to avoid predators. Other birds that are large or nest in colonies may build nests in the ope ...

Figure 14.4: The Great Frigatebird (Fregata minor) adults are known to care for their young forupto20monthsafterhatching, thelon ...

Figure 14.5: The down-curved, hooked bill of a scarlet macaw, a large colorful parrot (Ara macao). ( 1 ) Figure 14.6: A long, th ...

Figure 14.7: The webbed feet of a great black-backed gull (Larus marinus). ( 33 ) Figure 14.8: The long spreading toes of an Ame ...

Why Birds are Important Nowthat youhave some general knowledge about birds, you may wantto make a list yourself of how you think ...

Figure 14.10: The Kokako, another important browser species of New Zealand. ( 14 ) ...

have been featured in art since prehistoric times, as in early cave paintings. Perhaps their beauty and diversity will always ca ...

Vocabulary aerofoil A surface which is designed to aid in lifting or controlling by making use of the air currents through which ...

Answer: They have fur to decrease heat loss; their diets contain high energy foods and methods of feeding help to maintain a hig ...

There are approximately 5,400 mammalian species, ranging in size from the tiny 1-2 in (30-40mm) bumblebee bat to the 1,083ft (33 ...

Figure 14.12: Another monotreme, the platypus, like other mammals in this order, lays eggs and has a single opening for the urin ...

Figure 14.13: A marsupial mammal, this Eastern grey kangaroo has a joey (young kangaroo) in its abdominal pouch. ( 28 ) ...

Figure 14.14: A mating system with a harem of many females and one male, as seen in the seal species,Callorhinus ursinus. ( 18 ) ...

Figure 14.16: One of the subgroups of placental mammals is the insectivores, including moles and shrews. Pictured here is the No ...