WorksheetsNatural Selection and Dichotomous Keys
Total questions: 44
Worksheet time: 43mins
Name
Class
Date
1.
Survival of the Fittest and Evolution were proposed by what scientist?
a)
Charles Darwin
b)
Albert Einstein
c)
Steven Hawking
d)
Isaac Newton
2.
Behavioral changes of individuals of a species that allow for better survival. (Acquired traits)
a)
Variation
b)
Adaptation
c)
Behavior
d)
Environment
3.
Where the better adapted organisms survive to pass traits along to offspring.
a)
Evolution
b)
Natural Selection
c)
Extinction
d)
Artifical Selection
4.
What was the name of the ship Darwin traveled the world on?
a)
HMS Beagle
b)
SS Beagle
c)
HMS Bugle
d)
SS Bugle
5.
What are the most studied animals in the galapagos?
a)
Finches
b)
Tortoises
c)
Turtles
d)
Lizards
6.
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.
7.
The theory of evolution by natural selection means that what is changing over time?
a)
The inherited traits of a population.
b)
The acquired traits of a population.
c)
Hair color and eye color
d)
Attractive features.
8.
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.
9.
Mutations are a change in what?
a)
DNA
b)
tRNA
c)
genotype
d)
phenotype
10.
Do organisms "decide" to evolve and change?
a)
Yes, they know they need to change to survive
b)
No, they change because of natural selection
11.
The differences among a species, like different bird beaks, are called
a)
genes.
b)
variations.
c)
traits.
d)
theories.
12.
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
13.
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
14.
What process is being shown in this image?
a)
Variation
b)
Natural Selection
c)
Selective Breeding
d)
Homeostasis
15.
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
16.
These moths are all the same species. The differences between their wings is an example of ________________
a)
Natural Selection
b)
Variation
c)
Homeostasis
d)
Extinction
17.
Selective breeding is where ___________ decides which traits should be passed on
a)
Nature
b)
A human
c)
Mr. Holt
d)
The illuminati
18.
Natural selection is where ___________ decides which traits should be passed on
a)
Nature
b)
A human
c)
Mr. Holt
d)
The illuminati
19.
The more genetic variation a population has,
the more likely it is for some individuals to
a)
evolve
b)
migrate
c)
survive
d)
mutate
20.
All of the following statements are reasons for selective breeding except:
a)
To produce offspring with desirable characteristics
b)
Farmers increase their profit by improving crops
c)
To improve the quality of food products
d)
To increase migration patterns
21.
The purpose of selective breeding is to
a)
Get bigger animals
b)
get smaller animals
c)
create animals with desirable traits
d)
create animals with bad traits
22.
A farmer has bred his pineapple plants from the sweetest pineapples from his last harvest to get even sweeter pineapple plants. What is this an example of?
a)
Selective breeding
b)
Natural selection
c)
Extinction
d)
Mutagenesis
23.
Which term refers to a farmer choosing the best corn from this year to plant next year?
a)
natural selection
b)
selective breeding
c)
genetic engineering
d)
genetic transformation
24.
What is one of the processes involved in selective breeding?
a)
allowing organisms to reproduce without interference
b)
choosing individuals with desirable characteristics to be parents of the next generation
25.
Organisms within a population have genetic differences in their traits called.
a)
Genotypes
b)
Variation
c)
Natural Selection
d)
Heterozygous
26.
Tool used by a taxonomist to identify an unknown organism is a:
a)
dichotomous key
b)
binomial nmenclature
c)
scientific name
d)
binomial key
27.
An illustration and a dichotomous key are given. What is the correct classification for this organism?
a)
Class Insecta
b)
Order Amblygygi
c)
Order Araneae
d)
Order Scorpiones
28.
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
29.
A botanist discovers a new plant in the jungle. Which of the
following observations of the plant’s characteristics would be useful in determining its identity with a dichotomous key?
following observations of the plant’s characteristics would be useful in determining its identity with a dichotomous key?
a)
It was discovered in the summertime
b)
It is wet from a recent rain storm.
c)
Its leaves curl up on the edges.
d)
It is eaten by native jungle ants.
30.
When using a dichotomous key to identify organisms, what do we look at?
a)
physical features
b)
weather patterns
c)
environment
d)
diet
31.
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
32.
What step do we always start with when using dichotomous keys?
a)
1
b)
2
c)
3
d)
4
33.
What is the name of bird W?
a)
Certhidea
b)
Geospiza
c)
Camarhynchus
d)
Platyspiza
34.
What is the name of bird Z?
a)
Certhidea
b)
Geospiza
c)
Camarhynchus
d)
Platyspiza
35.
What is a dichotomous key used for in science?
a)
To organize biomes
b)
Classify organisms
c)
Identify bacteria only
d)
None of these
36.
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
37.
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
38.
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
39.
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
40.
When using a dichotomous key to identify organisms, what do we look at?
a)
physical features
b)
weather patterns
c)
environment
d)
diet
41.
What step do we always start with when using dichotomous keys?
a)
1
b)
2
c)
3
d)
4
42.
What characteristics does the magnolia leaf have?
a)
Lobed edge
b)
Simple leaf
c)
Compound leaf
d)
Jagged Edge
43.
Identify the fish
a)
Sebastes serriceps
b)
Sebastes nebulosus
c)
Naucrates ductor
d)
Seriola lalandi
44.
Look at the observation data provided. Based on the observation data and key above, what is the correct identification for the three arachnids? (7.11A)
a)
Scorpion, Whipscorpion, and Wind scorpion
b)
Whipscorpion, Daddy Long Legs, and Scorpion
c)
Scorpion, Daddy Long Legs, and Tick
d)
Whipscorpion, Wind scorpion, and Daddy Long Legs
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