GOFAR
“Bell Ringers”
7th grade
CLASS LAUNCHERS
Day 1

Which is an adaptation that makes it possible for the animal to
survive in a cold climate?
A) tail on a lizard
B) scales on a fish
C) stripes on a tiger

D) fur on a bear
Which characteristic distinguishes Bacteria from all other
kingdoms of life?
A) They are always unicellular.
B) They have single cells without a nucleus.
C) They move by waving their flagella.
D) They can make their own food.
Day 2

Which biome is characterized by low temperatures and low
amounts of rainfall?

A) tundra
B) desert
C) temperate deciduous forest
D) tropical rain forest
This family tree shows the
relationship among certain
primates based on the
chemical composition of a
protein in their blood.
According to this tree,
which pair is most closely
related?
A) spider monkeys and
colobus monkeys
B) baboons and gorillas
C) owl monkeys and spider
monkeys
D) gorillas and chimps
Day 3
What class of animals has the characteristics shown in the list?
A) fish
B) amphibians
C) reptiles
D) birds

The following are adaptations in amphibians to live on land except

A) strong bones and muscles.
B) skin that stays moist.
C) gills for breathing.
D) a complete digestive system.
Day 4

Which group needs an aquatic environment to
reproduce?
A) amphibians
B) birds
C) mammals

D) reptiles
Which is a hypothesis?
A) Five earthworms died when the soil became too dry.
B) Earthworms have a mucous-covered outer surface.
C) Heavy rain causes earthworms to move above ground.
D) What will happen if an earthworm is cut in two?
Day 5
 Which
bird would have the BEST chance of
surviving to reproduce in an environment
where the main food source was insects
buried deep in the soil?
Day 6


According to the table and key, what conclusion
can be drawn about the two organisms?
Dichotomous Key
1a has nucleus
go to 2
1b has no nucleus prokaryote
2a unicellular
algae
2b multicellular
go to 3
3a cell wall
plant
3b no cell wall
animal
Organism
FEATURES
Nucleus
Number of
cells
Cell wall
1
Yes
Multicellular Yes
2
Yes
Multicellular No
Day 7
 The
respiratory system is responsible for
bringing oxygen rich air into the body.
Which system is responsible for absorbing
the oxygen and carrying it throughout the
body?
 A.
excretory
 B. circulatory
 C. digestive system
 D. immune system
Day 8
 Which
part of the excretory system regulates
the contents of body fluids?
 A. bladder
 B. ureter
 C. kidney
 D. inferior vena cava
Day 9

Thirteen species of finch live on the Galapagos
islands. How would different beak structures help
the finches on the islands?
A. The different beaks lead to more competition for nesting
space among the species.
B. The different beaks lead to different forms of camouflage
among the species.
C. The different beaks lead to increased mimicry among
the species.
D. The different beaks lead to less competition for food
among the species.
Day 10
 Both
A.
B.
C.
D.
bacteria and animal cells contain
Mitochondria
Chloroplasts
Cytoplasm
A nucleus
What is the ultimate source of energy received
by the large fish in the food web?
Decomposer
A. Small fish
B. The decomposers
algae
People
C. The sun
Large
Small
D. The humans
fish
fish
Day 11
 Which
of the following is NOT a function of
the circulatory system?




A. transport of oxygen to cells
B. transport of waste from cells to the excretory system
C. transport of nutrients from the digestive system to cells
D. transport of information from skin cells to the brain
Which organ system carries nutrients to cells and aids in removing
Wastes from cells?
A. nervous
B. circulatory
C. skeletal
D. excretory
Day 12

A certain biome has hot summers, cold winters,
and year-round precipitation. Which biome is
this?




A. grassland
B. savanna
C. temperate forest
D. tropical rain forest
Rabbits were first brought to Australia in 1859. Since that time,
Australia has been overrun by rabbits. Why do non-native
Species like Australian rabbits often become overpopulated in their
New habitat?
A. they have few predators and competitors
B. they fit into the new ecosystem better
C. They are stronger than the native species
D. they breed faster than the existing plants and animals.

A florist grew one type of flowering plant for 10 years. Each
year, the florist crossbred the plants with the palest blooms and
planted their seeds the following year. What is the MOST LIKELY
outcome of the florist’s process?
 A. Each generation of plant made blooms that were less
about to photosynthesize.
 B. Each generation of plant made blooms that were
increasingly pale.
 C. Each generation of plant made blooms that were less
resistant to insects.
 D. Each generation of plant made blooms that were
increasingly colorful.

Which analogy BEST matches this pair? chapter : book




A. system : organ
B. organ : cell
C. organism : organ
D. cell : tissue





Which organ system is responsible for the removal of
wastes?
A. respiratory
B. excretory
C. endocrine
D. nervous
In the early 1900s, a scientist named Walter Sutton
observed sperm and egg cells through a microscope. He
noticed that each sex cell carried only half as many
chromosomes as the body cells of the organisms that
produced them. Based on this information, which
conclusion did Sutton MOST LIKELY make?
A.
B.
C.
D.
Egg cells cannot fertilize other egg cells.
Genetic information doubles each generation.
Sperm and egg cells cannot become body cells.
Characteristics are transmitted from each parent
by chromosomes.










Grady want to make a dichotomous key of these
animals : bear, snake, lion, eagle. Into what groups
could he evenly divide the animals?
A. animals with legs and animals without legs.
B. animals with fur and animals without fur.
C. animals with vertebrae and animals without
vertebrae.
D. animals with wings and animals without wings.
Scientists think that the types of organisms living on Earth
have changes over time. Scientists have collected
evidence to support this claim by
A. studying fossils found in sedimentary rocks.
B. studying development of the solar system.
C. comparing sedimentary and igneous rocks.
Comparing life-forms on Earth to those on Mars.










Which of these is an adaptation in which a
harmless organisms looks like a harmful
organism?
A. camouflage
B. deception
C. mimicry
D. venom
Which of these communities contains
organisms BEST adapted to the ebb and flow
of the tides?
A. marine
B. freshwater
C. estuary
D. pond
Running
Trait
Black
Brown
Normal
242
80
?
Waltzing
74
17
?
Total
?
?
413
 Mice
Hair Color
Total
have 2 alleles that determine the
trait for how they run. Mice with the
normal trait can run in a straight line, and
mice with the waltzing trait can only run
around in circles. Of the 413 mice listed
above, how many have the normal trait?
a. 91
b. 97
c. 316
d. 322
 In
what biome would you find elk, moss,
and permafrost?
A. desert
B. Tundra
C. Temperate forest
D. Tropical rain forest
 Suppose that two species share the same
food source, and at some point the food
source becomes rare. Which type of
interaction would most likely intensify
between the two species?
a. Mutualism
b. commensalism
c. competition d. parasitism
Scientists who study fossils have discovered that whale
ancestors did not have fins. Instead, they had four legs
like dogs. What does this suggest about the ancestors of
whales?
A. whale ancestors could swim faster than whales today.
B. whales evolved from land mammals.
C. whales are mammals, not fish.
D. whale ancestors were also aquatic mammals.

Which organism transfers radiant energy from the sun into
chemical energy to be used as food?
a. Crab
b. Sunflower
c. Mushroom
d. Clam
Which organ of the digestive system absorbs water
from waste materials in preparation for defecation
(waste removal)?
Stomach
Small intestine
Large intestine
Liver

One parent has unattached earlobes, which is a
dominate trait. The other parent has attached earlobes,
which is a recessive trait. What is the probability that an
offspring of these parents will have attached earlobes?
a. 0% b. 25% c. 50% d. 100%
e e
E
E

Which of these involves a person’s muscular and
nervous systems?
 A. a person jumps in reaction to a startling
experience.
 B. Oxygen is absorbed in to the blood and carried
throughout the body.
 C. white blood cells travel to an infected location in
the body.
 D. the stomach produces chemicals to use in
digestion.
In the male of a particular species, a cell with 20 chromosomes
undergoes the type of cell division that produces four sperm cells.
How many chromosomes will each sperm cell have?
a. 5
b. 10
c. 20
d.40
Which of these produces oxygen as a waste product?
 A. American beaver
 B. brook trout
 C. sugar maple
 D. Eastern bluebird
An oceanographer is investigating whether the number
of killer whales off the California coast is declining.
What would be the MOST helpful information for the
oceanographer to seek first?
 A. the amount of food available to the killer whales.
 B. the average size of today’s killer whales as
compared to the average size of killer whales 50
years ago.
 C. the presence of disease among killer whales.
 D. the number of killer whales today compared to
the number of killer whales 50 years ago.
Which catastrophic event also returns nutrients
such as nitrogen compounds to the soil?
A. earthquake
B. forest fire
C. hurricane
D. tornado
 Mistletoe often grows on the trunks and branches
of trees. The roots of the mistletoe burrow into the
tree, soaking up water and nutrients. Most trees
can support a few mistletoe plants, but a tree with
many mistletoe plants will not be as healthy as
other trees of its species.
Which type of relationship is this?
A. parasite-host
B. carnivore-herbivore
C. predator-prey
D. consumer-producer

Which process is part of the carbon cycle?
A. condensation
B. respiration
C. precipitation
D. Evaporation

The New Zealand flatworm was accidentally
brought to the United Kingdom in the 1960’s,
probably in some potted plants. It now inhabits
much of Scotland. Scottish gardeners and
farmers consider the New Zealand flatworm a
pest because it kills and eats earthworms.
Which relationship is this?
A. predator-prey
B. Parasitism
C. Mutualism
D. commensalism
The suslik is a small animal whose diet consists
mainly of grasses, plant stems and leaves,
and flowers. In which habitat would the suslik
MOST LIKELY be found?
A. tundra
B. prairie
C. forest
D. Desert
If an organism has chloroplasts in its cells, what
would you assume about that organism?
a. It is a mammal
b. It lives in the rain forest
c. It does not respire
d. It makes its own food

 Dr.
Johnson identifies a new species of
plant that reproduces asexually. Which of
the choices below is FALSE?
A. the plant’s offspring share all of the
parent’s traits.
B. the plant’s offspring have all of the
parent’s genes.
C. the plant’s offspring display a wide range
of traits.
D. the plant’s offspring look the same as the
parent plant.
Dimples
Widow’s Peak
Total
Yes
No
Yes
62
17
79
No
?
8
26
Total
80
25
105
John asked 105 7th grade students in his school if they had a widow’s
peak and dimples. How many had a widow’s peak and no
dimples?
a. 17
b. 18
c. 43
d. 80
Which of these statements about animal cells is false?
a. Some animal cells make their own food
b. Some animal cells grow and divide to make more cells
c. Some animal cells process nutrients to produce energy
d. Some animal cells use nutrients to build or repair an organism
Which of these orders the organisms from
producer to top-level consumer?
A. algae-- bass -- shrimp larvae-- crayfish
B. bass -- crayfish -- shrimp larvae --algae
C. shrimp larvae – algae-- bass-- crayfish
D. algae -- shrimp larvae --crayfish – bass

The monarch butterfly and the Viceroy
butterfly look alike. The monarch tastes bad,
so birds do not eat it. The Viceroy tastes good,
but the birds avoid it. What adaptation is this?
A. camouflage
B. natural selection
C. mimicry
D. concealment

 Use
the dichotomous key to
answer.
 Suzanne
went bird watching
And spotted two different types of birds.
She listed their characteristics in the table.
Using the dichotomous key, what kind of
bird is Bird 2?
A. Blue jay
Features
B. Seagull
BIRD
Size
Color
C. Sparrow
1
Small
Brown
D. hawk
2
Large
Brown
Beak
straight
curved
 The
black walnut tree makes a chemical
that is toxic to many other plants. This
chemical keeps other plant species away
from the black walnut. Which term best
describes the relationship between a
black walnut and other plant species?
 A. competition
 B. mutualism
 C. commensalism
 D. parasitism