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12 Science Unit Test

Invertebrates

QuestionAnswer
The bodies of cnidarians have... radial symmetry
What does a cnidarian use to capture prey? stinging cells
Which of these animals has radial symmetry? a sea anemone
Which of the following is a characteristic of insects: one pair of antennae; four legs; three pairs of wings? one pair of antennae
Which of these is NOT an arthropod: centipede; grasshopper; snail? snail
Which of the following is NOT a characteristic that biologists use to classify animals? the animal's body structure; the animal's DNA; where the animal lives? where the animal lives
Sea urchins move by using their... tube feet
Insect larvae are specialized for... eating and growing
What do earthworms to do soil? they make is more fertile with their wastes
An animal that has a backbone is called a.... vertebrate
Which of the following is an advantage of using biological controls against harmful insects? they are natural predators of the harmful insects
How does a sponge obtain its food? collar cells filter the food from water
Snails and slugs belong to which group of mollusks? gastropods
Major functions of animals include obtaining food and oxygen, keeping internal conditions stable, movement, and... reproduction
An arthropod's tough outer covering is called... an exoskeleton
At the beginning of its life, a coral polyp... attaches to a solid surface
Which of the following is a characteristic of animals with radial symmetry; they have no distinct head or tail ends; they must move quickly to catch prey; they move faster on land than in water? they have no distinct head or tail ends
Where do most crustaceans live? in water
What types of foods do insects eat? anything living or once-living
Which of the following is a characteristic of echinoderms: an exoskeleton; three body sections; radial symmetry? radial symmetry
Which characteristic of NOT common to all arthropods: an external skeleton; jointed appendages; a backbone? a backbone
Molting occurs during the gradual metamorphosis of an insect whenever... the nymph outgrows its exoskeleton
In roundworms, wastes exit the body through the... anus
An animal has bilateral symmetry if... one line can be drawn to divide the animal into halves that are mirror images
A segmented worm's circulatory system... moves blood in a network of blood vessels
The bodies of all spiders have... two body sections
What makes up a coral reef? the skeletons of dead corals
Which of the following is a characteristic shared by all animals: their bodies have many cells; they eat plants; they reproduce asexually? their bodies have many cells
How do some insects help other living things? by helping them reproduce
The process by which a new organism forms from the joining of an egg cell and a sperm cell is called... sexual reproduction
A balanced arrangement of parts is called... symmetry
Which of these is vase-shaped: a medusa; a polyp; a sponge larva? a medusa
Organisms that grow on or in other organisms are called... parasites
How do sponges reproduce sexually? water carries sperm from one sponge to eggs in another sponge
How does an echinoderm use its water vascular system? to capture food
Sponges belong to the phylum... Porifera
Which of the following is a function of the mantle in many mollusks: it produces the shell; it enables the mollusk to move; it helps the mollusk digest food? it produces the shell
Which of these characteristics is shared by all worms: they are parasites; they live in soil; they have a brain? they have a brain
Insect mouthparts are adapted for... eating specific foods
Which of these is a function of spikes in a sponge: protect the sponge's body; to help the sponge reproduce; to digest and distribute food? protect the sponge's body
An echinoderm with long slender arms and flexible joints is a... brittle star
Camouflage benefits insects by helping them to... avoid predators
Cephalopods move by... using jet propulsion
Which of these is phylum of worms: Porifera; Annelida; Cnidaria? Annelida
Which of the following is NOT a flatworm: a tapeworm; an earthworm; a fluke? an earthworm
Which of these is NOT a stage in complete metamorphosis: larva; pupa; nymph? nymph
How does a grasshopper get oxygen? through a system of tubes
Which arthropods have no antennae? arachnids
Which of the following is true of all mollusks: they have shells; they have soft bodies; they have segments? they have soft bodies
Which of the following describes a roundworm's digestive system: food enters through a feeding tube; food travels through the digestive system in two directions; the digestive system is like a tube that is open at both ends? the digestive system is like a tube that is open at both ends
A gastropod's radula enables it to... scrape food from a surface
The joining of an egg cell and a sperm cell is called... fertilization
A bivalve obtains food by... filtering it from water
Which of these it NOT an insect? bee; beetle; mite? mite
An organism that eats wastes and dead organisms is a... decomposer
Which of the following best describes the kinds of animals found in a coral reef? invertebrates and vertebrates
What type of worm may be the most abundant animal on Earth? roundworms
Which of the following is a characteristic of millipedes: they have one pair of legs on each segment; they have tiny stingers to stun their prey; they have two pairs of legs on each segment? they have two pairs of legs on each segment
Which of these is NOT a major kind of worm: a flatworm; a roundworm; a silkworm? a silkworm
Because of the many ways in which insects obtain food and become food, they play key roles in... food chains
Created by: 7thgrade
 

 



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