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Science Final Grade 7 2021-2022

Total questions: 40

Worksheet time: 3hrs 19mins

Name
Class
Date
1.

Who created the most commonly used system of taxonomy?

a)

Niels Bohr

b)

Watson and Crick

c)

Charles Darwin

d)

Carl Linnaeus

2.

Which of the following is NOT a unicellular kingdom?

a)

Prokaryotes

b)

Protists

c)

Archaea

d)

Fungi

3.

Which one is NOT a difference between plants and fungi?

a)

Plants use cellulose but fungi use chitin

b)

Plants are autotrophs but fungi are heterotrophs

c)

Plants have cell walls but fungi don't

d)

Plants make their own food and fungi decompose their food

4.

Which is NOT a eukaryote?

a)

Plants

b)

Animals

c)

Archaea

d)

Protists

5.

Which taxonomic category is higher than the others?

a)

Class

b)

Genus

c)

Family

d)

Phylum

6.
What is a Heterotroph?
a)
A producer
b)
An organism that makes its own food
c)
A consumer or decomposer
7.
How many Domains are there?
Name them:
a)
3; Archaea, Bacteria, Eukarya
b)
2; Bacteria, Eukarya
c)
1; Eukarya
d)
3; Bacteria, Eukarya, Protists
8.
Which of the following organisms are LEAST closely related?
a)
organisms that share a domain
b)
organisms that share a family 
c)
organisms that share a genus 
d)
organisms that share a species 
9.
In what way will a puppy always be like its parents?
a)
Be the same color
b)
Learn the same things
c)
Have the same body structures
d)
Live in the same places
10.
Which trait could be influenced by the environment?
a)
Fur color changes with seasons
b)
Fur color changes as you get older
c)
Height is affected by what you eat
d)
You can stretch to grow taller
11.
Which of these is an example of a learned behavior?
a)
A cleft chin
b)
The color of a flower
c)
A toddler learning how to read
d)
A wolf with thick fur
12.
What is NOT an inherited trait of humans?
a)
Favorite type of music
b)
Freckles
c)
Hair color
d)
Height
13.
What specialized structure do crabs have to protect them against predators?
a)
Warm, thick fur
b)
Fast running bodies
c)
Good digestive systems
d)
A hard outer shell
14.
Which of these is an acquired trait?
a)
Having blue eyes
b)
Pierced ears
c)
The ability for a baby to cry
d)
Freckles
15.
What is a trait that is passed from parents to offspring before the offspring is born?
a)
Learned behavior
b)
Acquired trait
c)
Inherited trait
d)
Offspring
16.
Which of these did you inherit from you parents?
a)
Your ability to read
b)
Your natural hair color
c)
The language you speak
d)
Whether you have a suntan
17.
Which is an example of an instinct?
a)
A boy writing his name
b)
A girl riding a bike
c)
A cat hunting a mouse
d)
A dog learning to sit on command
18.

Heredity is the passing of traits from _____________________ to _____________________

a)

predators to prey

b)

water to rain

c)

parents to offspring

d)

offspring to parents

19.

___________________________ is the study of how traits are passed on, or inherited.

a)

dominant traits

b)

recessive traits

c)

phenotype

d)

genetics

20.
One trait that is ALWAYS present and causes the other traits to disappear is a ________________________
a)
recessive trait
b)
aggressive trait
c)
absent trait
d)
dominant trait
21.

_____________________ is the physical appearance of an organism (how it looks)

a)

phenotype

b)

ratio

c)

recessive trait

d)

heredity

22.

Dominant or recessive?


tt

a)

Dominant

b)

Recessive

23.

Dominant or recessive?


TT

a)

Dominant

b)

Recessive

24.

Dominant genes are represented by a ________

a)

Male gene

b)

lowercase letter

c)

recessive trait

d)

capital letter

25.

AA and Aa are _______ traits

a)

dominant

b)

recessive

26.

Dominant or recessive?


aa

a)

dominant

b)

recessive

27.

This table shows the genetic possibilities for a pea plants. R represents the trait for tall pea plants. r represents the trait for short pea plants. How many pea plants will be tall?

a)

1

b)

2

c)

3

d)

4

28.

True or False:

We get 1/2 of our genes from our mother and 1/2 of our genes from our father

a)

True

b)

False

29.
One trait that is ALWAYS present and causes the other traits to disappear is a ________________________
a)
recessive trait
b)
aggressive trait
c)
absent trait
d)
dominant trait
30.
A human zygote should have _____ chromosomes inside.
a)
46
b)
23
c)
92
d)
64
31.
What phase of mitosis is shown in the picture?
a)
Prophase
b)
Anaphase
c)
Telophase
d)
Metaphase
32.
Chromatid pairs can be seen, spindle fibers form and nuclear membrane disappears
a)
Metaphase
b)
Telophase
c)
Anaphase
d)
Prophase
33.
Structure B is pointing to the _____. 
a)
chromosome
b)
centromere
c)
DNA
d)
chromatid
34.

The phase wherein sister chromatids align in one place at the center.

a)

Prophase

b)

Metaphase

c)

Anaphase

d)

Telophase

35.

The phase wherein sister chromatids align in one place at the center.

a)

Prophase

b)

Metaphase

c)

Anaphase

d)

Telophase

36.
Which of the following is a phenotype?
a)
Aa
b)
red hair
c)
heterozygous
d)
DNA
37.
How many boxes would say BB?
a)
1
b)
2
c)
4
d)
0
38.
The scientific name for humans is _______ ____
a)
Homo sapiens
b)
Homo neandertal
c)
homo Sapiens
d)
homo sapiens
39.
_________ characters may or may not be similar between two organisms but they developed from a common ancestor.
a)
homologous
b)
analogous
c)
cladistic
d)
phylogenic
40.
______________ is the process by which populations change in response to their environment.
a)
natural selection
b)
adaptation
c)
reproductive isolation
d)
divergence

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