Observing God's World Test 4

Question 1

number of body regions of crustaceans

Answer 1

three

Question 2

name of the body region when the head and thorax are joined together

Answer 2

cephalothorax

Question 3

number of legs crustaceans have

Answer 3

ten

Question 4

what crustaceans breathe with

Answer 4

gills

Question 5

pair(s) of legs a centipede has on most body segments

Answer 5

one pair

Question 6

which pair of legs is most poisonous on a centipede

Answer 6

the pair of legs closest to the mouth

Question 7

creature that defends itself by releasing poison through the stink glands along the side of its body

Answer 7

millipede

Question 8

the stiff bristles on the body of an earthworm

Answer 8

setae

Question 9

the protective outer covering of arthropods

Answer 9

exoskeleton

Question 10

valuable for enrichment of the soil

Answer 10

earthworm’s castings

Question 11

threadlike structures in a cell that determine the characteristics of the organism and how it runs

Answer 11

chromosomes

Question 12

the structure that surrounds the cell and protects it

Answer 12

cell membrane

Question 13

the jellylike fluid that fills the cell

Answer 13

cytoplasm

Question 14

the structure that directs the work of the cell

Answer 14

nucleus

Question 15

uses its foot to move as if it were sliding on its stomach

Answer 15

gastropod

Question 16

mollusks having two matching shells

Answer 16

bivalves

Question 17

one-shelled mollusks

Answer 17

univalves

Question 18

it has five or more rays, each with two rows of tube feet

Answer 18

sea star

Question 19

an invertebrate that builds a protective limestone cup at the base of its body

Answer 19

coral polyp

Question 20

the tiniest crab

Answer 20

pea crab

Question 21

a shrimp that searches for parasites and other harmful things on a fish

Answer 21

cleaner shrimp

Question 22

the wood louse whose nickname is the roly-poly; expels an offensive odor when attacked

Answer 22

pill bug

Question 23

the crab whose shell covers only the front part of its body

Answer 23

hermit crab

Question 24

a small, freshwater lobster

Answer 24

crayfish

Question 25

the lobster with no pincers

Answer 25

spiny lobster

Question 26

the favorite food of some whales

Answer 26

krill

Question 27

the shrimp that has “gill feet”; often used as aquarium food

Answer 27

brine shrimp

Question 28

the shrimp with a stun gun

Answer 28

pistol shrimp

Question 29

the crustacean that cements itself to an object when it is young

Answer 29

barnacle

Question 30

in the group of protozoans

Answer 30

amoeba

Question 31

insect group

Answer 31

ant

Question 32

crustacean group

Answer 32

barnacle

Question 33

mollusk group

Answer 33

clam

Question 34

crustacean group

Answer 34

crab

Question 35

insect group

Answer 35

ladybird beetle

Question 36

mollusk group

Answer 36

octopus

Question 37

protozoan group

Answer 37

paramecium

Question 38

arachnid group

Answer 38

scorpion

Question 39

arachnid group

Answer 39

tarantula

Question 40

the process of transformation which insects undergo

Answer 40

metamorphosis

Question 41

the chemical process by which a plant produces food

Answer 41

photosynthesis

Question 42

the green pigment that gives a green plant its color

Answer 42

chlorophyll

Question 43

a plant that lives for only one season of growth

Answer 43

annual

Question 44

tree that bears cones instead of flowers

Answer 44

conifers

Question 45

some of the smallest green plants

Answer 45

algae

Question 46

a good source of sugar and syrup

Answer 46

maples

Question 47

trees known for producing acorns

Answer 47

oak

Question 48

the tree that has smooth, papery bark that peels off in thin layers

Answer 48

birch

Question 49

has needles that grow in bundles

Answer 49

pine trees

Question 50

-has no definite shape
-moves by means of pseudopods
-uses its pseudopods to engulf food
-must live in water
-some live in the bodies of people or animals

Answer 50

amoeba