what is the function of ribosomes

to assemble amino acids to create proteins

What is the primary function of mitochondria?

energy production, responsible for cellular respiration

What is the primary function of the nucleus in a cell?

To store the cell's genetic information

To provide structural support to the cell

To control the movement of substances in and out of the cell

What is the primary function of chloroplasts?

To capture light energy and convert it into chemical energy through photosynthesis in plant cells

To carry out cellular respiration

To capture light energy and convert it into chemical energy through photosynthesis in animal cells

What is the primary function of vacuole?

To store water and nutrients - larger in plant, smaller in animal

To carry out cellular respiration

To store water and nutrients - larger in animal, smaller in plant

To capture light energy and convert it into chemical energy through photosynthesis in animal cells

What is the primary function of the cytoplasm in a cell?

D) To support and suspend organelles and carry out metabolic reactions

A) To control the movement of substances in and out of the cell

B) To provide structural support and shape to the cell

What is the primary function of the cell wall in a cell?

B) To provide structural support and rectangular shape to the plant cell

A) To control the movement of substances in and out of the cell

C) To provide structural support and rectangular shape to the animal cell

D) To support and suspend organelles and carry out metabolic reactions

Which of the following is an example of a behavioral adaptation?

B) A bird migrating south for the winter

A) A camel storing fat in its hump to survive in the desert

C) A polar bear's thick fur to insulate against cold temperatures

D) A fish having gills to extract oxygen from water

Which of the following is an example of a behavioral adaptation?

C) A bat using echolocation to find food in the dark

A) A cheetah's ability to run at high speeds to catch prey

B) A tree shedding its leaves in winter to conserve water

D) A frog's skin that changes color to blend with its environment

What is the primary function of the cell membrane?

C) To control the movement of substances in and out of the cell, to surround cytoplasm

A) To provide energy for the cell

B) To store genetic information

D) To synthesize proteins for the cell

Which of the following is an example of a physiological adaptation?

A) A snake shedding its skin to grow

B) A deer fleeing from predators

C) A fish swimming in schools for protection

D) A human developing a fear of heights

Which of the following is an example of a physiological adaptation?

B) A polar bear's body producing more fat to insulate against cold temperatures

A) A giraffe growing a long neck to reach high leaves

C) A bird singing to attract a mate

D) A lion hunting in packs to catch prey

Which of the following is an example of a physiological adaptation?

B) A cactus storing water in its stem to survive dry conditions

A) A bat using echolocation to find food

C) A wolf hunting at night to avoid heat

D) A deer migrating to find food in winter

Which of the following best describes natural selection?

A) The process by which individuals with traits that are better suited to their environment are more likely to survive and reproduce

B) The ability of an organism to change its behavior to adapt to environmental changes

C) The genetic mutation of a species that allows it to survive in any environment

D) The random genetic changes that occur in a population over time without any selective pressure

In a population of animals, some individuals have fur that is lighter in color, while others have darker fur. Over several generations, the lighter-colored fur becomes more common in the population. Which of the following best explains this change?

A) The lighter-colored fur provided a better chance of survival because it helped the animals blend in with their environment, reducing their chances of being seen by predators.

B) The darker-colored fur provided a better chance of survival because it helped the animals blend in with their environment, reducing their chances of being seen by predators.

C) All the animals in the population had equal chances of survival, so the color of their fur did not affect their survival.

D) The fur color change occurred because of a sudden environmental change that caused all the animals to evolve at once.

A population of moths lives in a forest where the trees' bark is typically dark in color. Over time, more moths with darker-colored wings appear in the population, while lighter-colored moths become less common. What is the most likely explanation for this change?

C) The dark-colored moths are better camouflaged against the dark bark, so they are less likely to be eaten by predators, leading to more dark-colored moths surviving and reproducing.

A) The dark-colored moths are more visible to predators, so the lighter-colored moths survive better and reproduce more.

B) The lighter-colored moths were better at finding food, so they reproduced more than the dark-colored moths.

D) The moths’ wing color changed due to a sudden genetic mutation that occurred in one generation.

Unit 8 Pretest

8th Grade

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34 Qs

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Unit 8 Pretest

Quiz

•

Science

•

8th Grade

•

Practice Problem

•

Medium

•

NGSS

MS-LS1-2, MS-LS4-4, MS-LS3-1

Standards-aligned

Used 18+ times

FREE Resource

34 questions

Show all answers

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Ribosomes are associated with ______

protein production

cellular respiration

photosynthesis

solute levels reaching equilibrium

Tags

NGSS.MS-LS1-2

NGSS.MS-LS3-1

MULTIPLE SELECT QUESTION

45 sec • 1 pt

Choose all correct statements.

Genes are sections of chromosomes

Each chromosome contains more than one gene

Genes determine inherited traits

Several chromosomes make up an inherited trait

MULTIPLE SELECT QUESTION

45 sec • 1 pt

Mark all that are correct.

Inherited traits are determined by groups of chromosomes acting

together.

Traits are determined by the environment

Genes determine inherited traits

Genes are sections of chromosomes

Tags

NGSS.MS-LS4-4

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is A

endoplasmic reticulum

nucleus

mitochondria

chloroplast

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is B

endoplasmic reticulum

nucleus

mitochondria

chloroplast

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is 2?

vacuole

nucleus

mitochondria

chloroplast

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is C

golgi apparatus

nucleus

mitochondria

nucleolus

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2

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Ribosomes are associated with ______

Choose all correct statements.

Mark all that are correct.

What is A

What is B

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What is 4

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What is i?

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