Animal Classification

How many phyla of animals are there?

• 2
• 5
• 1
• 35

What characteristic do all animals have in common?

• They are all autotrophs.
• They are all multicellular.
• They are all vertebrates.
• They are all endothermic.

Animals are all heterotrophs.  This means they

• all make their own food through photosynthesis
• all are multicellular
• all reproduce sexually
• have to get their food by consuming plants and other animals

Which of the following is a list of all the vertebrates?

• fish, arthropods, reptiles, birds, mammals
• sponges, arthropods, amphibians, birds, and mammals
• fish, amphibians, reptiles, birds, and mammals
• echinoderms, arthropods, amphibians, birds, and reptiles

What kind of skeletons do vertebrates have?

• exoskeleton
• endoskeleton

What organs do vertebrates have for exchanging gases?

• lungs and gills
• muscles and bones
• sensory organs and brains
• skin and vertebrae

What kind of animals have body temperatures that change with the temperature of the environment?

• endothermic
• ectothermic
• heterotroph
• autotroph

What kind of animals have body temperatures that remain constant no matter what the temperature of the environment?

• endothermic
• ectothermic
• heterotroph
• autotroph

Are fish endothermic or ectothermic?

• endothermic
• ectothermic

How do fish get oxygen?

• through gills
• through lungs
• by air tubes
• through their skin