The teacher demonstrated the (symmetry) of circles by breaking a cookie into equal halves.
1. The property of being the same or corresponding on both sides of a central dividing line
2. An animal that does not have a backbone
The property of being the same or corresponding on both sides of a central dividing line
Starfish, like other (echinoderms), have tube feet and live in the ocean.
1. An animal that has a backbone
2. A marine animal, such as a sand dollar or sea urchin, that has a symmetrical shape and no backbone
A marine animal, such as a sand dollar or sea urchin, that has a symmetrical shape and no backbone
Crabs & shrimps, breathe with gills.
1. False
2. True
True
What is the difference between vertebrates and invertebrates?
1. Invertebrates have backbones, vertebrates don't
2. Vertebrates have backbones, invertebrates don't
Vertebrates have backbones, invertebrates don't
Which can you conclude is NOT an invertebrate?
1. A person
2. A snail
A person
The seal could not bite through the lobster's (exoskeleton) to reach the soft flesh inside.
1. An internal support system that grows along with an animal
2. A hard outer structure that provides protection or support for an organism
A hard outer structure that provides protection or support for an organism
The birds in this area mostly eat insects, worms, and other small (invertebrates)
1. An animal that does not have a backbone
2. A hard outer structure that provides protection or support for an organism
An animal that does not have a backbone
What is the largest invertebrate group?
1. Mollusks
2. Arthropods
Arthropods
What is true of cnidarians?
1. They have poisonous stinging cells
2. They have a shell and live in water
They have poisonous stinging cells
What is NOT true of a sponge?
1. It filters water for food
2. It is a vertebrate
It is a vertebrate
Some (cnidarians), such as the box jellyfish, use their limbs to catch fish.
1. A sea animal that has tentacles around an opening in its body which it uses both for eating and for getting rid of waste
2 An animal that does not have a backbone
A sea animal that has tentacles around an opening in its body which it uses both for eating and for getting rid of waste
(Sponges) get nutrients as ocean currents pass through the openings in their soft bodies
1. A simple multicellular invertebrate animal that lives attached to one place and filters food from water
2. The property of being the same or corresponding on both sides of a central dividing line
A simple multicellular invertebrate animal that lives attached to one place and filters food from water
A sea urchin has symmetry.
1. True
2. False
True
Which is NOT an arthropod group?
1. Insects
2. Echinoderms
Echinoderms
How are clams and oysters similar?
1. They are both mollusks
2. They are both sponges
They are both mollusks
You need a tool to open & eat (mollusks), such as oyster.
1. An internal support system that grows along with an animal
2. An animal that usually lives in a shell and has a soft body and no backbone
An animal that usually lives in a shell and has a soft body and no backbone
Some (arthropods), such as scorpions and centipedes, use venom to kill their prey.
1. An animal that does not have a backbone
2. An invertebrate with a segmented body, jointed legs, & an external skeleton
An invertebrate with a segmented body, jointed legs, & an external skeleton
There are eight groups of vertebrates.
1. True
2. False
False
What does every arthropod have?
1. Gills
2. An exoskeleton
An exoskeleton
How are echinoderms and arthropods different?
1. Echinoderms have jointed legs, while arthropods have spiny skin
2. Echinoderms have an endoskeleton, while arthropods have an exoskeleton
Echinoderms have an endoskeleton, while arthropods have an exoskeleton
A (vertebrate) has a spine that helps to support its body.
1. An internal support system that grows along with an animal
2. An animal that has a backbone
An animal that has a backbone
The (endoskeleton) of a dog protects its soft organs and allows it to move freely.
1. An animal that does not have a backbone
2. An internal support system that grows along with an animal
An internal support system that grows along with an animal
What group is a vertebrate?
1. Amphibians
2. Mollusks
Amphibians
How are roundworms and segmented worms different?
1. Most roundworms live inside animals, but most segmented worms live on land
2. Most roundworms have head and tail ends, but most segmented worms do not
Most roundworms live inside animals, but most segmented worms live on land
What is true of a roundworm?
1. It is the simplest worm
2. It has a one-way digestive system
It has a one-way digestive system