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Biology- unit 7
The Diversity of Living Things
| Question | Answer |
|---|---|
| algae | a nonvascular plant that reproduces by spores; makes it own food |
| amphibian | a thin-skinned, scaleless, cold-blooded vertebrate; many spend part of their life in the water and part on land, and lay eggs in water |
| annelid worm | a segmented worm with a well-defined body cavity as well as a system of blood vessels and nerves |
| arthropod | an animal with a segmented body and an exoskeleton |
| bird | a warm-blooded vertebrate that has feathers and wings |
| chordate | an animal that has a nerve cord in its back at some point in its life |
| cnidarian | a bag-shaped animal with only two cell layers that is armed with stinging cells, and often has tentacles |
| cold-blooded | having a body temperature that is determined by the temperature of the surroundings |
| conifers | a vascular plant that has needlelike leaves and reproduces by seeds in cones |
| echinoderm | a spiny-skinned animal whose parts are arranged in a pattern of five rays |
| endoskeleton | a skeleton that appears on the inside of the body |
| exoskeleton | a skeleton that appears on the outside of the body |
| fern | a vascular plant that reproduces by spores as well as sperm and eggs |
| fish | a cold-blooded vertebrate that lives in the water and breathes through gills; most have scaly skin |
| flatworm | a ribbon-shaped worm with no body cavity |
| flowering plant | a vascular plant that reproduces with flowers |
| invertebrate | an animal without a backbone |
| mammal | a warm-blooded vertebrate that has hair and whose females feed the young with milk glands |
| mollusk | a soft-bodied animal with a muscular foot or feet; may or may not have a shell |
| moss | a nonvascular plant that reproduces by spores |
| nonvascular | plants without tubelike cells |
| photosynthesis | the process plants and algae use to make the sugar glucose, from water, carbon dioxide, and the energy in sunlight |
| phylum | the largest, most general group of a kingdom (pl. phyla) |
| reptile | a dry, scaly, thick-skinned, cold-blooded vertebrate that lays eggs on land |
| roundworm | a round worm with a tubelike body cavity |
| seed | a part formed by a flower or cone that contains a new plant and stored food |
| sponge | a simple animal with two layers of unspecialized cells that gets food by filtering water through its pores |
| spore | a specialized cell that can grow into a new plant |
| vascular | plants having tubelike cells for transporting liquids |
| vertebrate | an animal that has a nerve cord in its back and a backbone |
| warm-blooded | having a constant body temperature regardless of the temperature of the surroundings; only birds and mammals are warm-blooded |
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