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Review Module 16

Module 16 Review Exploring Creation with Biology

QuestionAnswer
List common characteristics of reptiles. Covered with tough, dry scales; Ectothermic; Breathe with lungs throughout their lives; Three-chambered heart with partially divided ventricle; Amniotic eggs with leathery shell, most oviparous, some ovoviviparous
Identify parts of egg. Review figure of egg.
What is the function of the yolk? Contains nutrients, which sustain developing embryo.
What is the function of the albumen? Defense against pathogens
What is the function of the amnion? Creates fluid filled sac in which the embryo floats.
What is the function of the allantois? Sac of blood vessels that allows for respiration and excretion of the embryo
What is the function of the chorion? The chorion is a membrane that surrounds the amnion, yolk and yolk sac, and the allantois.
What is the growth-related characteristic common to reptiles and arthropods? They both must molt (shed skin) because their body covering is not living and can't grow.
What are the two most important functions of reptile scales? Prevent water loss and insulate the reptile's body
What are the four orders that contain currently living reptiles? Rhynchocephalia, Squamata, Crocodilia, Testudines
What are six characteristics that set birds apart from other vertebrates? Endothermic; Heart with four chambers; Toothless bill; Oviparous, laying amniotic egg covered in lime-containing shell; Covered with feathers; Skeleton of porous, lightweight bones (exceptions)
What is the difference in the blood circulation between amphibians and birds? In amphibians, oxygen-rich and oxygen-poor blood is mixed, but in birds they are always separate.
Looking at a feather under a microscope, you see that there are no hooked barbules. What kind of feather is it? Down feather
What type of feather is used for flight? Contour
Why does a bird preen? It is oiling its feathers.
What is unique about bird molting? A bird's feathers molt in pairs, one or a few at a time, whereas arthropods and reptiles tend to molt their whole body covering at once.
What did flight engineers learn from birds to make practical flight possible? Proper structure of a wing; How to make strong, hollow tubes; Reduce wing turbulence
What are the five characteristics that set mammals apart from other vertebrates? Hair covering skin; Internal fertilization and usually viviparous; Nourish young with milk secreted from specialized glands; Four-chambered heart; Endothermic
What is the function of underhair? Insulation
Do we see underhair or guard hair when looking at a mammal? Guard hair
Name a nonplacental mammal. Any from orders Monotremata or Marsupialia: duck-billed platypus, spiny anteater, kangaroo, wallaby, koala, opossum
What is the difference between offspring born after a long gestation period and those after a short gestation period? Offspring with a long gestation period are more developed.
To which order does the tuatara belong? Rhynchocephalia
To which order do lizards belong? Squamata
To which order to crocodiles belong? Crocodilia
To which order do tortoises belong? Testudines
To which order do snakes belong? Squamata
To which order do alligators belong? Crocodilia
Created by: michelemegna