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WorksheetsCBA Review 7th Grade
Total questions: 24
Worksheet time: 21mins
Name
Class
Date
1.
A dichotomous key for trees is provided. Hikers found a tree that has large brown cones and single sharp needles. What species of tree have the hikers found?
a)
Juniper
b)
Pine
c)
Spruce
d)
Fir
2.
A dichotomous key for insects is given. To what order does an insect with two pairs of scaly wings belong?
a)
Coleoptera
b)
Heteroptera
c)
Diptera
d)
Lepidoptera
3.
What step do we always start with when using dichotomous keys?
a)
1
b)
2
c)
3
d)
4
4.
Tool used by a taxonomist to identify an unknown organism is a:
a)
dichotomous key
b)
binomial nmenclature
c)
scientific name
d)
binomial key
5.
A table of arachnid and insect characteristics is shown. Which characteristic could be used to distinguish between
arachnids and insects?
arachnids and insects?
a)
Jointed legs
b)
Body segments
c)
Presence of eyes
d)
Presence of antennae
6.
What is the name of bird W?
a)
Certhidea
b)
Geospiza
c)
Camarhynchus
d)
Platyspiza
7.
A student discovers an arachnid with a segmented abdomen, long legs, and a tail with no stinger. The student uses the dichotomous key below to identify it. Which arachnid has the student found?
a)
Whip Scorpion
b)
Wind Scorpion
c)
Daddy long legs
d)
Scorpion
8.
Using this dichotomous key, identify the name of the circled Fish, J.
a)
peacock flounder
b)
band-tail puffer
c)
trumpet fish
d)
spotted goat fish
9.
Using this dichotomous key, identity the name of the circled fish.
a)
band-tail puffer
b)
spotted goat fish
c)
peacock flounder
d)
trumpet fish
10.
Behavioral changes of individuals of a species that allow for better survival. (Acquired traits)
a)
Variation
b)
Adaptation
c)
Behavior
d)
Environment
11.
Where the better adapted organisms survive to pass traits along to offspring.
a)
Evolution
b)
Natural Selection
c)
Extinction
d)
Artifical Selection
12.
What is the advantage of having different shaped beaks?
a)
To look different from other species.
b)
To be able to eat the food readily available in the environment.
c)
To protect itself against predators.
d)
To protect itself against prey.
13.
Why are advantageous traits more likely to be passed onto offspring?
a)
Because they are more likely to survive and reproduce.
b)
Because they come from dominant alleles.
c)
Because they come from recessive alleles.
d)
Because the trait is an acquired phenotype.
14.
The trees these moths used to live on were white, but have been covered in soot from coal factories. Which moth will be more successful in this environment?
a)
Dark moth
b)
Light moth
c)
Both will be equally successful
d)
Neither will be successful
15.
Since the 1800s humans have stopped burning coal, and the trees have returned to their original color. Which moth will be more successful in this environment?
a)
Dark moth
b)
Light moth
c)
Both will be equally successful
d)
Neither will be successful
16.
What process is being shown in this image?
a)
Variation
b)
Natural Selection
c)
Selective Breeding
d)
Homeostasis
17.
Why is the mouse population changing over time?
a)
The light mice can reproduce more successfully than the dark mice
b)
The hawks eat more dark mice than light mice because the dark mice taste better
c)
The hawks eat more light mice than dark mice because they can see the light mice more easily
d)
The hawks eat more dark mice than light mice because they can see the dark mice more easily
18.
Organisms that are better adapted to the environment survive to pass traits to their offspring
a)
Natural Selection
b)
Homeostasis
c)
Selective Breeding
d)
Extinction
19.
Any inherited trait that gives an organism an advantage in its environment is called a _________
a)
Mutation
b)
Adaptation
c)
Homeostasis
d)
Selection
20.
Domesticated dogs are an example of:
a)
Natural Selection
b)
Selective Breeding
21.
The adaptations of the peppered moth are an example of:
a)
Natural Selection
b)
Selective Breeding
22.
The altering of corn to produce more kernels with much more sugar is an example of:
a)
Natural Selection
b)
Selective Breeding
23.
The long and sharp beak of a woodpecker is an example of:
a)
Natural Selection
b)
Selective Breeding
24.
If the environment suddenly changed, how could a species go extinct?
a)
The environmental change means fewer predators are around
b)
There are more homes available in the newly changed environment
c)
New resources are available with less competition
d)
There aren't enough members of the species with a trait necessary to survive in the new environment
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