Question | Answer |
Characteristics of Mollusks are: | ALL have a soft body.
Only some have a shell and/or live in water. |
The group of mollusks, BIVALVES, get their food how? | Filtering it from the water.
They are filter feeders. |
Arthropods have a tough outer covering that is called . . . | an exoskeleton. |
How do cephalopods move? | By jet propulsion - they squeeze a current of water out of the mantle cavity and through a tube. |
Characteristics of millipedes are: | 2 pairs of legs on each segment.
Curl into a ball when disturbed. |
Characteristics of insects are: | ALL have 6 legs (or 3 pair) and 3 body sections.
Only some have wings. |
Camouflage is a benefit to insects because . . . | it helps them avoid predators. |
The stages of complete metamorphosis are . . . | 1 - Egg 2 - Larva
3 - Pupa 4 - Adult |
When does molting occur during GRADUAL metamorphosis? | When the nymph outgrows its exoskeleton. |
Characteristics of echinoderms are: | They all have radial symmetry. |
The water vascular system in echinoderms is used to . . . | to move in order to capture food. |
A gastropod uses its radula to . . . | get food. |
Which group of mollusks do snails and slugs belong to? | Gastropods |
Most crustaceans live where? | in water |
Grasshoppers get oxygen . . . | through their skin. |
The mouthparts of insects are adapted for eating . . . | very specific eating. |
What will insects eat? | Anything living or once was living. |
How do sea urchins move? | They use bands of tube feet that extend out between the spins. |
What is a decomposer? | An organism that eats wastes and dead organisms. |
Characteristics shared by ALL animals? | All animals have bodies that have many cells. |
The name for an animal that has a backbone is? | Vertebrate |
The name of an animal that does NOT have a backbone is? | Invertebrate |
Examples of animals that have radial symmetry are . . . | Brittle Stars
Starfish |
What is bilateral symmetry? | When an object has just 1 line that divides it into halves that are mirror images.
Example: humans |
How do sponges get the food they eat? | Collar cells that line the central cavity trap tiny organisms. |
Describe the shape of
a polyp
a medusa | a polyp is vase-shaped
a medusa is bowl-shaped |
What kinds of animals are you most likely to see in a coral reef, vertebrates or invertebrates? | Both vertebrates and invertebrates. |
A roundworm's digestive system can be described as . . . | It is like a tube where food enters at one end and exits through the other end. |
What type of circulatory system does a segmented worm have? | A closed circulatory system - blood moves through a network of blood vessels. |
Sexual reproduction is . . . | the process in which a new organism is formed from the joining of an egg cell and a sperm cell. |
Animals with radial symmetry have the characteristic of . . . | having no distinct head or tail. |
What is a parasite? | An organism that grows on or in another organism. |
What type of symmetry to cnidarians have? | Radial symmetry |
Earthworms do what to soil? | Their waste makes soil more fertile. |
Roundworms release waste from which part of their body? | Their anus. |
Fertilization is what? | The joining of an egg cell and a sperm cell. |
What is a predator? | An animal that hunts and kills other animals. |
What body system is the clittellium in an earthworm for? | Reproductive |
What is the difference between the crop and the gizzard in an earthworm? | Crop - soft, food storage
Gizzard - hard, grinds food |
Examples of mollusks are: | snails, clams, squid |
What is the purpose of an insect's antennae? | Sensory |
What is the name for when a starfish reproduces asexually? | Fission |
What type of skeleton does a starfish have? | Endoskeleton |