| A | B |
|---|
| What basic needs to all animals need to survive? | Food, water, oxygen, appropriate climate, enough space, and protection from predators and weather |
| How do animals' teeth provide clues to what it eats? | Meat eaters (carnivores) have sharp, pointed teeth that help them tear apart flesh. Plant eaters (herbivores) have flat teeth that are suitable for grinding food. |
| How do foxes learn to protect themselves? | Adult foxes teach their young |
| How do Australian termites provide a safe habitat for the colony? | By building a mound. |
| How is the axolotl adapted to living in water? | It can swim and has large external gills for obtaining oxygen from the water. |
| animal without a backbone | Invertebrate. |
| animal with a backbone | Vertebrate. |
| What characteristics do all chordates have in common? | A notochord, a nerve cord, gill slits, and a tail |
| Why two kinds of symmetry might you see in invertebrates? | Two-sided (bilateral) and Radial symmetry |
| what is two-sided (bilateral) symmetry? | Where each side is mirror image of the other, like arthropods |
| what is radial symmetry? | When similar parts are arranged around a central axis like starfish, sea urchins, and sand dollars |
| what % of animals are invertebrates | 96% |
| of the invertebrates, what is the largest group? | Arthropods, 85% |
| a system of connecting bones that lie within the animal's body | Endoskeleton. |
| Fish, amphibians, reptiles, birds are mammals are examples of ___________. | Vertebrates. |
| skeleton on the outside of the animal's body | Exoskeleton. |
| one type of animals that filters the water it lives in to get food | Sponge. |
| How many layers of cells does a sponge have? | Two. |
| Where do most sponges live? | In shallow ocean waters wehre tehy attach themselves to hard underwater surfaces, such as the ocean floor, rocks, other animals, and human- made structures |
| Sponges vary in ___ ____, and ____. | Color, shape, size. |
| Why is a sponge classified as an animal? | It takes in food and has moving, whiplike structures |
| carnivorous, or meat-eating invertebrates that have tentacles all around the mouth, and does not have organs in their bodies | Cnidarians. |
| where do all cnidarians live? | In the sea water (salty). |
| what type of symmetry to cnidarians have? | Radial. |
| what 2 body forms can cnidarians take? | Polyp or medusa. |
| examples of cnidarians | Hydra, sea anemone, jellyfish, coral |
| How do cnidarians catch their food? | All cnidarians can sting their prey, then they use their tentacles to move the prey into the mouth opening |
| How is the comb jelly different from all cnidarians? | It does not have stinging cells |
| what are reef building cnidarians? | They are called coral, live in huge colonies in sea water, have many different shapes and colors,and show radial symmetry. Coral ployps live on the skeletons of dead coral. They continue to build the reef by forming their own skeletons. |
| what has a flattened body, a digestive system with only one opening, and simple nervous system | Flatworm. |
| a planarian is an example of ___ . | Flatworm. |
| where do most flatworms live? | Both fresh and salt water. |
| how are flatworms more complex than sponges? | Flatworms have bilateral symmetry, sense organs, and nerve organs, a mouth and a digestive system, and sex organs |
| How do roundworms digest their food? | They have a digestive system with 2 openings, they take in food in one end and eliminate waste from the other |
| How do roundworms and flatworms reproduce? | Both reproduce sexually. |
| what has a round, tubelike body | Roundworm. |
| what can flatworms do that roundworms can not? | Regenerate. |
| what do flatworms have? | Eyespots.. |
| an organism that survive by living on or in another animal by feeding and getting protection from that animal | Parasite |
| the sheep liver fluke, the roundworm Ascaris, hookworms, Trichinella, and the fluke Schistosoma | Examples of parasites. |
| how does the parasite harm the host? | By feeding on it and by causing weakness and disease |
| does the host benefit from the parasite? | No. only the parasite benefits from the relationship of parasite and host |
| worms with bodies made up of connected sections, or segments | Segmented worm. |
| what is the major difference between an earthworm and other worms? | An earthworm has body systems that are more complex than those of other worms |
| how do sponges get food? | They absorb food from the water that they propel through canals through the bodies |
| how does the earthworm differ from the roundworm? | The earthworm has a circulatory system |
| an animal with a soft body and no bones | Mollusk. |
| examples of mollusks | Clams, oysters, scallops, slugs, snails, squid, octopods |
| do all mollusks have shells? | No a mollusk may have one shell, two shells (bivalve) or no shell |
| how do mollusks protect themselves | Many pull their bodies completely into their shells, some burrow in the sand or mud, and some more very quickly |
| arthropod | Animal with jointed exoskeleton |
| Spiders, scorpions, ticks, and mites are ___. | Arachnids. |
| Animals with 6 jointed legs that are the biggest group of arthropods? | Insects.. |
| examples of echinoderms | Starfish, sand dollars, sea urchins, sea cucumbers, brittle stars, feather stars |
| what animals have a soft body without bones, use sexual reproduction and may have an outer shell, muscular foot, radula | Snails |
| The octopus is a __type of mollusk. | Complex. |
| what do all arthropods have in common? | Exoskeleton, jointed legs , jointed body, a digestive system with two openings, a circulatory system, and a brain |
| Why must an arthropod molt? | The exoskeleton does not grow, but the soft body inside does. When the animal sheds its old exoskeleton, a new, larger one takes its place. |
| Arachnids have __legs, __ antennae, and book ___. | Eight, no, book lungs. |
| How do insects breathe? | Through air ducts along the sides of their bodies |
| How do arthropods help us? | Pollinating crops, providing foods, eliminating other arthropods that destroy plants |
| What characteristics do all echinoderms have in common? | They have spiny skin, an endoskeleton, no head or brain and tube feet; they are also adapted to living in the sea |
| In what ways are echinoderms different from other invertebrates? | Echinoderms have an endoskeleton, tube feet, and spines that protrude from their skin |
| How does an octopus propel itself through the water? | It squirts a jet of water from it internal cavity through a siphon |
| What problem does an exoskeleton cause an arthropod? | As the animal grows, it must shed its old skin; the animal is nearly defenseless while it new skin is hardening |
| Dr.Ernest Everett Just. | Zoologist/Embryologist.Dr.Just studied cells in the eggs of invertebrates that lived in the sea. |
