click below
click below
Normal Size Small Size show me how
Science Explosion 06
BJU 6th Science - Chapter 5
| Question | Answer |
|---|---|
| Invertebrate | animal without a vertebral column |
| Vertebrate | has vertebral column |
| Nematocyst | organ causing a sting |
| Mollusk | typically have soft unsegmented body, a mantle (with or without shell) |
| Filter feeder | feeds on particles or small organisms strained out of water by circulating them through its system |
| Parasite | lives on or in a host |
| Free-living | lives independent of other organisms |
| Segment | one of many similar pieces that make up the soft body of a segmented worm. |
| Arthropod | “jointed foot”, most number animals on earth |
| Exoskelton | a hard covering that acts like a knight’s armor, protecting the arthropods body |
| Molt | when arthropods shed their exoskeleton and grow a new one in order to grow |
| Crustacean | sea creatures with at least five pairs of jointed legs and two pairs of antennae; they breathe through gills, and most have some sort of claw |
| Arachnid | have eight legs and two body segments |
| Insect | have head, thorax (with 3 pairs of legs) and abdomen (most have two pairs of wings) |
| Metamorphosis | a life cycle process from egg to adult |
| Incomplete Metamorphosis | egg à nymph à adult |
| Complete Metamorphosis | egg à larva (caterpillar) à pupa (chrysalis) à adult |
| Cold-blooded | animals that rely on the environment for warmth |
| Cartilage | a bonelike substance that is softer and more bendable than bone |
| Amphibian | “double life”, start in water end on land |
| Omnivore | an animal that eats both plants and animals |
| Herbivore | an animal that eats only plants |
| Carnivore | an animal that eats only meat |
| Warm-blooded | animals that have a consistent internal temperature regardless of the environment |
| Insectivore | an animal that eats mainly insects |
| Nocturnal | active at night |
| Echolocation | a technique used by some animals that involves making high-frequency clicks that bounce off objects and allow the animals to judge distance based on the time it takes the sound to return |
| Pride | a group of lions living together |
| Blubber | a fatty substance to insulate from cold |
| Pod | a group of whales traveling together |