Science 7 Chapter 14
The Warm-Blooded Vertebrates
Terms in this set (38)
A place where you could see the most marsupials in their natural environment
Monkeys, gorillas and chimpanzees
the inhale and exhale
a bird's lungs are filled with oxygen-rich air during
parts of a feather
quill, papilla, and barb
used to sense things around them
structure that attaches an embryo to the placenta
underhair is to fur as down is to __________
crop is to digestion as air sac is to __________
process a bird uses to oil its feathers to keep them flexible
are endothermic, belong to class Aves, and have feathers
have hair and produce milk
have hollow bones that reduce their weight for flying; are heavy eaters; require parental care after they hatch
navel, or bellybutton
marks the place where the umbilical cord was attached
largest mammal order
only flying mammal
primates tail used for gripping
bat, mouse or rat, dog or cat
feathers that cover and insulate a bird
the organ where birds store food
the protein found in hair
produces milk in female mammals
small bumps on a bird's skin from which feathers grow
supplies oxygen to some developing mammals
the food reserve in a bird egg
mammals that lay eggs
how birds care for their eggs
long, pointed teeth used for tearing
the part of a bird feather that anchors the feather in the skin
animals that raise their young in a pouch (koala, kangaroo)
the process of birds losing their feathers and growing new ones
What is one way in which air sacs are helpful to birds?
Air sacs allow the bird to obtain fresh oxygen both when inhaling and exhaling, providing extra oxygen needed for flight. They are also the primary way a bird cools its body, allowing more air to enter the body and warm air to leave.
What marsupial is native to North America?
Describe three ways in which birds are specially designed for flight.
Birds have wings, which are needed for flight. They also have very lightweight, yet strong, bones. The low body weight is essential for flying. Birds have very large appetites and eat more than their body weight in food each day. This much food is important to provide energy for flight. Birds also have air sacs that allow them to obtain fresh oxygen both when inhaling and exhaling. This extra oxygen is used in aerobic cellular respiration to produce the energy needed for flight.
"Marsupials are born twice." Correct? or incorrect?
One argument is that the marsupial's pouch becomes another area where the embryo develops; thus, when the older and more developed baby emerges from the pouch, it is born for the second time. Another argument is that the pouch is not inside the mother's body, that the baby is not attached to a placenta or umbilical cord, and that the baby drink milk but embryos do not; thus, marsupials are not born twice.
In what ways are humans similar to primates? Does this mean that humans should be classified as animals? Why or why not?
Humans and primates are similar in their placental reproduction, milk production, ability to walk upright, opposable thumbs for grasping things, forward-facing eyes that allow for depth perception, and social nature. However, these similarities do not mean that humans are animals. God created humans in a special way, by a direct act and in His image. Humans have a spiritual nature and can have a relationship with God. We are accountable to God and will spend eternity either with Him or apart from Him, depending on whether we have trusted Christ as our Savior.
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