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10 Cards in this Set

  • Front
  • Back
In terms of food, how are animals different than plants?
Animals must find food to eat whereas plants make their own food.
Into what two major categories do scientists separate animals?
Vertebrates and invertebrates are the two categories.
Roughly what percentage of all animals have backbones?
About 10% of all animals are vertebrates compared to 90% invertebrates.
Into what five major categories do scientists separate the group of animals which tend to be greater in size as opposed to number?
Fish, amphibians, reptiles, birds, and mammals are the categories.
Into what six major categories do scientists separate the group of animals which tend to be greater in number as opposed to size?
The categories are the sponges, stinging-celled animals, worms, jointed creatures, soft-bodies, and spiny critters.
Which category of animals represents about 75% of all animals?
Jointed animals like insects, crabs and lobsters make up this large category.
Which category is the simplest of the animals without backbones?
Sponges are the simplest animals without backbones.
What three categories of animals with backbones are cold-blooded?
Fish, amphibians, and reptiles have body tempertures which change according to the temperature around them.
Name two soft-bodied animals without backbones whose names start with the letter "s".
Slugs and snails are soft-bodied animals (that damage Mr. Clay's garden!)
What is the systematic grouping of organisms into categories on the basis of evolutionary or structural relationships between them?
That grouping is called classification.