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105 Cards in this Set
- Front
- Back
What kingdom do animals belong to |
Animalia |
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Animals are unicellular or multicellular |
multicellular |
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Are animals Heterotrophs or photoautotrophs |
Heterotrophs |
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Invertebrates |
Animals without a backbone |
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Vertebrates |
animals with a backbone |
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How do animals reproduce |
Sexually |
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How many cells are in a human |
Around 50 trillion |
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Cells specialise for a |
Particular function |
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Groups of cells form tissues by |
Cell junction |
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Most organs are composed of one or more |
Tissues |
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Multicellularity and cell specialisation allow |
Great variety |
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Heterotrophs obtain what from other sources |
Organic molecules |
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Most animals obtain molecules by |
Ingestion |
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Two gametes fuse to form a |
Zygote |
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During differentiation cells begin to |
Specialise |
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What tissue systems allow movement |
Nervous and muscle |
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Neurons receive what and send impulses |
Stimuli |
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What kind of cells contract to cause movement |
muscle |
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The first animals probably arose in the |
Sea |
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Invertabrates evolved from |
Protists |
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Multicellular invertabrates developed from |
Colonies of protists |
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Specialisation in colonies resulted in |
Different cell types |
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How many animal phyla are recognized |
Over 30 |
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What makes up a small percent of the kingdom animalia |
Vertebrates |
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Symmetry refers to |
A consistent overall pattern of structure |
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Radial symmetry displays |
Top and bottom without front, back, or sides |
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Example of an animal that displays radial symmetry |
A sea star |
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Most animals display |
Surfaces and ends |
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Dorsal |
Top |
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Ventral |
Bottom |
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Anterior |
Head |
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Posterior |
Tail |
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Bilateral symmetry |
Two sided symmetry with like halves |
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Most bilateral symmetry-displaying animals display |
Aphalization |
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In aphalization, where is the concentration of sensory tissue |
The head |
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Fundamental tissue types in embryo |
Germ layers |
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Germ layers produce |
Tissues and organs |
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What kind of body cavities exist in most animals |
Fluid filled |
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3 things the body cavity does |
Separates body wall from digestive system Allows for movement Fluid acts as a medium for transport |
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Animals are classified according to |
Body plans and patterns of development |
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Location of patterns of tree shows |
Relationship |
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Describe sponges (3) |
Multicellular Limited specialization Lack tissues |
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Cnidopions and ctenophores have how many tissue layers |
2 tissue layers |
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How many layers of tissue do most animal phyla have |
3 |
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What kind of symmetry do most animals display |
bilateral |
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How many diverse phyla of vertebrates are there |
10 |
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Greatest number of animal species and numbers |
Invertebrates |
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The 11th phyla of invertebrates |
Chordates |
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Chordates display the dorsal ? ? And ? Pouches |
Nerve cord Pharyngeal |
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Chordates display a ? Tail |
Posterial |
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Subphylum of chordates |
vertebrates |
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In vertebrae, the notochord develops into the |
Vertebral column |
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What kind of symmetry do invertebrates display |
Radial or bilateral |
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Examples of invertebrates |
Squid Jellyfish |
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An animal displays this when they have a series of repeating units |
segmentation |
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Examples of animals that display segmentation |
Earthworm Crayfish |
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Example of an animal with a simple skeleton |
Sponge |
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Exampme of an animal with fluid pressure |
Roundworm |
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Example of an animal with an exoskeleton |
Arthropods |
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Respiratory systems allow for |
Gas exchange |
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Explain an earthworm's respiratory system |
Diffusion through moist membrane |
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What kinds of animals have gills |
Aquatic inverts and mollusks like clams |
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Circulatory systems move |
Blood and fluid |
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What do circulatory systems transport to cells |
Oxygen and nutrients |
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Open circulatory system pumps blood into |
The body cavity |
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Examples of animals with circulatory systems |
Clams and insects |
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Closed circulatory systems pump blood through |
Closed vessels |
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Animals with closed circulatory systems |
Squid Earthworm |
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Digestion breaks down |
Food molecules |
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Digestion occurs in |
Individual cells |
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Digestion occurs in a ? Chamber |
Central |
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Most animals have a digestive |
Tract |
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The nervous system controls |
Response and movement |
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Cephalization evolved |
Over time |
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Sponges have no |
Neurons |
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Squid have well developed |
Brains and a nervous system |
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Reproduction is diverse with |
All sexual and some asexual |
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What kind of sex organs do hermaphrodites have |
Male and female |
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Example of indirect development |
Larva hatching from an egg |
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Example of direct development |
A nymph hatches from an egg |
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Vertebrates show adaptations for |
Life on land |
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Vertebrates are supported by |
Inner endoskeletons |
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Repeating vertebrae form a |
Backbone |
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Vertebrates' limbs are evolved |
For movement |
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The integument covers |
The body |
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The integument prevents |
Water loss |
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Amphibians use moist skin for |
Respiration |
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Feathers and fur do what |
Insulate |
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Respiratory system exchanges |
Gases |
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Aquatic vertebrates have |
Gills |
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Terrestrial vertebrates have |
Lungs |
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The circulatory system is closed with a |
Pumping heart |
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Digestion occurs in the |
Gut |
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The gut runs from the |
Mouth to the anus |
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Excretory system eliminates |
Waste |
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Kidneys filter blood, producing |
Urine |
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The nervous system is highly developed with a |
Brain |
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The brain shows varying levels of |
Complexity |
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Fish Brains are less complex with |
Rigid responses |
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Mammal brains are highly complex with |
Decision making |
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Fish and amphibians fertilize eggs in |
Water |
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Young fish and amphibians develop |
Outside body of parent |
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Amphibians undergo what kind of development |
Indirect with larva |
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Reptiles, mammals, and birds fertilize eggs |
Inside body |
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What do birds, insects, and some mammals do with eggs |
Incubate them |