Free Printable Term 1 - Final quiz grade 9

1.

No single characteristic alone can describe a living thing, but all living things share certain characteristics. Which is NOT one of these characteristics?

a)

ability to move from place to place

b)

made of cells

c)

ability to respond to the environment

d)

reproducing, or making more of one’s own kind

2.

Patterns of life are influenced by physical geography such as climate, landforms, and natural resources.

a)

True

b)

False

3.

All people around the world follow the same pattern of life regardless of their culture or environment.

a)

True

b)

False

4.

DeShawn is studying homeostasis and circulation. To organize his findings, he constructs two models: one to represent a non-smoker, and one that includes attributes typically found in a smoker. By comparing the two models, which relationship of cause and effect can DeShawn BEST explain?

a)

Contractions of the heart move blood through the circulatory system.

b)

Smoking causes changes to homeostasis throughout the body.

c)

Smoking damages the function of the circulatory system.

d)

Blood flows in one direction only through the circulatory system.

5.

Parts of some plants and animals grow according to the Fibonacci sequence of numbers, developed by an Italian mathematician. In the sequence, each number is the sum of the previous two numbers. The shell of the chambered nautilus, the seeds in a sunflower, and pineapples all exhibit a structure called the “Fibonacci spiral.” Look at the pictures. Which crosscutting concept of biology do these phenomena BEST represent?

a)

Cause and Effect: Mechanism and Explanation

b)

Systems and System Models

c)

Patterns

d)

Stability and Change

6.

Scientists use the metric system when gathering data and performing experiments. Which of the following statements about the metric system are true? Select three correct answers.

a)

Scientists need a common system of measurement in order to gather qualitative data.

b)

The units of the metric system are scaled on multiples of 10, making mathematical calculations easier to perform.

c)

The units of the metric system include kilograms for mass, meters for length, liters for volume, and degrees Celsius for temperature.

d)

Scientists often retest others’ experiments, so a common system of measurement is essential.

7.

The structure of a biological organ always relates to its function.

a)

True

b)

False

8.

The metric system is important because it provides a universal standard of measurement used by most countries around the world.

a)

True

b)

False

9.

The relatively stable set of internal conditions that organisms maintain is called

a)

metabolism

b)

a genome

c)

evolution

d)

homeostasis

10.

Which of the following is a characteristic shared by all living things?

a)

Ability to fly

b)

Ability to reproduce

c)

Ability to write DNA codes

d)

Ability to photosynthesize

11.

Which best explains how different fields of biology differ in their approaches?

a)

Each field studies the same questions using the same methods.

b)

Each field focuses on a specific level of organization or type of organism.

c)

Biology is only divided into molecular and cellular studies.

d)

All fields of biology study only animals.

12.

A marine biologist studying coral reefs and a geneticist studying DNA sequences differ mainly because:

a)

They use different organisms only.

b)

They ask unrelated scientific questions.

c)

They use different scales of study in biology.

d)

One uses the metric system, while the other does not.

13.

Which of the following shows the correct order of metric units from smallest to largest?

a)

Kilometer → Millimeter → Centimeter

b)

Millimeter → Centimeter → Meter → Kilometer

c)

Centimeter → Kilometer → Meter → Millimeter

d)

Meter → Centimeter → Kilometer → Millimeter

14.

All living things maintain homeostasis.

a)

True

b)

False

15.

Different fields of biology often overlap when studying complex systems.

a)

True

b)

False

16.

The metric system is only used in some countries and has no role in global science communication.

a)

True

b)

False

17.

Which are the catalysts of reactions in living things?

a)

Enzymes

b)

Lipids

c)

Carbohydrates

d)

Substrates

18.

What changes during a chemical reaction between two compounds?

a)

Number of atoms

b)

Chemical bonds

c)

Total mass

d)

Total energy

19.

For a chemical reaction to occur, energy is needed to:

a)

Destroy bonds permanently

b)

Break bonds in the reactants

c)

Create new atoms

d)

Prevent the reaction

20.

The energy needed to start a chemical reaction is called:

a)

Kinetic energy

b)

Reaction energy

c)

Potential energy

d)

Activation energy

21.

Enzymes are made of:

a)

Lipids

b)

nucleic acids

c)

Carbohydrates

d)

proteins

22.

The role of enzymes in living organisms is to:

a)

Store energy

b)

Speed up chemical reactions

c)

Stop chemical reactions

d)

Break down atoms

23.

Enzymes speed up reactions by:

a)

Increasing the activation energy

b)

Lowering the activation energy

c)

Using more reactants

d)

Releasing heat

24.

The reactants of enzyme-catalyzed reactions are called:

a)

Products

b)

carriers

c)

Cofactors

d)

substrates

25.

The place on the enzyme where the substrate binds is called:

a)

Active site

b)

Reaction site

c)

Energy level

d)

Catalyst zone

26.

After an enzyme speeds up a reaction, it:

a)

Is used up

b)

Is destroyed

c)

Remains unchanged and reusable

d)

Becomes a substrate

27.

Whether a chemical reaction will occur depends on:

a)

The number of enzymes present

b)

The change in energy during the reaction

c)

The size of the molecules

d)

The pH of the solution

28.

A reaction that gives off heat to the surroundings is:

a)

Endothermic

b)

Exothermic

c)

Endergonic

d)

Neutral

29.

Enzymes increase the activation energy of a reaction.

a)

True

b)

False

30.

Each enzyme is specific to one type of substrate.

a)

True

b)

False

31.

What is formed when an enzyme binds to its substrate?

a)

Product only

b)

Enzyme-substrate complex

c)

Active site only

d)

Coenzyme

32.

What happens to chemical bonds during chemical reactions?

a)

Bonds are only formed, not broken

b)

Bonds are broken and new bonds are formed

c)

Bonds remain unchanged

d)

Only energy is released, bonds are unaffected

33.

Enzymes are consumed in a chemical reaction.

a)

True

b)

False

34.

Substrates bind to the active site of an enzyme.

a)

True

b)

False

35.

Energy changes do not affect whether a chemical reaction will occur.

a)

True

b)

False

36.

Ecology is best defined as:

a)

the study of rocks and soil

b)

the study of the Earth’s atmosphere

c)

the study of interactions among organisms and their environment

d)

the study of planets

37.

Objective (1): Describe the methods used to study ecology. 2) Explain how biotic an abiotic factors influence an ecosystem, how we can understand global systems and the changes they undergo. The part of Earth in which life exists is called:

a)

geosphere

b)

biosphere

c)

hydrosphere

d)

lithosphere

38.

Objective (1): Describe the methods used to study ecology. 2) Explain how biotic an abiotic factors influence an ecosystem, how we can understand global systems and the changes they undergo. Which of the following is the correct sequence of levels of ecological organization (smallest to largest)?

a)

population → species → community → ecosystem → biome → biosphere

b)

species → population → community → ecosystem → biome → biosphere

c)

community → ecosystem → biome → biosphere → species → population

d)

species → community → population → ecosystem → biosphere → biome

39.

Objective (1): Describe the methods used to study ecology. 2) Explain how biotic an abiotic factors influence an ecosystem, how we can understand global systems and the changes they undergo. A population includes members of different species.

a)

True

b)

False

40.

Objective (1): Describe the methods used to study ecology. 2) Explain how biotic an abiotic factors influence an ecosystem, how we can understand global systems and the changes they undergo. A biome is made up of ecosystems that share similar climate and organisms.

a)

True

b)

False

41.

Objective (1): Describe the methods used to study ecology. 2) Explain how biotic an abiotic factors influence an ecosystem, how we can understand global systems and the changes they undergo. Experimentation in ecology is used to test hypotheses.

a)

True

b)

False

42.

Which of the following is a group of organisms that can breed and produce fertile offspring?

a)

community

b)

species

c)

biome

d)

population

43.

A collection of populations that live together in a defined area is called:

a)

ecosystem

b)

population

c)

community

d)

habitat

44.

A group of ecosystems that share similar climate and typical organisms is called:

a)

biome

b)

biosphere

c)

species

d)

ecosystem

45.

Which of the following shows the relationship between ecology and economy?

a)

human economies depend on healthy ecological systems

b)

ecosystems depend on human financial systems

c)

economy and ecology are totally unrelated

d)

ecology controls money growth directly

46.

Which of the following is NOT a general approach used to study ecology?

a)

observation

b)

modeling

c)

experimentation

d)

gathering factors

47.

Why is observation important in ecological studies?

a)

it creates money for human economies

b)

it is the last step of ecological study

c)

it helps in asking questions and forming hypotheses

d)

it helps organisms reproduce faster

48.

Species is the largest level of ecological organization

a)

True

b)

False

49.

Which method of ecological study is designed to test hypotheses?

a)

modeling

b)

observation

c)

experimentation

d)

prediction

50.

Which of the following is the global system that contains most life on Earth?

a)

geosphere

b)

biosphere

c)

hydrosphere

d)

atmosphere

51.

Why is modeling important in ecology?

a)

to avoid using observation

b)

to help understand ecological processes

c)

to replace natural ecosystems

d)

to remove experiments

52.

The biosphere contains all ecosystems on Earth.

a)

True

b)

False

53.

A population consists of individuals of the same species living in an area, while a community includes all the different species living together in an area. Which of the following best illustrates this difference?

a)

A group of lions living in a savanna is a population, while all animals and plants in the savanna form a community.

b)

A group of lions and zebras together is a population, while only lions form a community.

c)

A population includes all living and non-living things, while a community includes only one species.

d)

A community consists of only plants, while a population consists of only animals.

54.

Ecology and economy are connected in real life. Which of the following is an example of this connection?

a)

A forest provides wood for industries, supporting both nature and business.

b)

A city has many tall buildings.

c)

People use mobile phones every day.

d)

A river flows through a village without any human activity.

55.

The climate zone closest to the equator is

a)

Polar

b)

temperate

c)

tropical

d)

torrid

56.

What causes wind?

a)

Wind is caused by the movement of air from areas of high pressure to areas of low pressure, usually due to unequal heating of the Earth's surface.

b)

Wind is caused by the rotation of the Moon around the Earth.

c)

Wind is caused by the Earth's magnetic field attracting air.

d)

Wind is caused by the evaporation of water from oceans.

57.

Which is a description of climate, and not the weather?

a)

A. Summer is wetter and warmer than winter.

b)

B. A hurricane is likely to reach southeast Florida this afternoon.

c)

C. The air today is more humid than it was yesterday.

d)

D. No rain is likely to fall for the next week.

58.

Compare between Weather and climate?

a)

Weather: Short-term changes in temperature, precipitation, clouds, and wind from day to day, or minute to minute Climate: Patterns and averages of temperature, precipitation, clouds, and wind over many years (Long-term changes).

b)

Weather: Long-term patterns of temperature and precipitation Climate: Short-term changes in temperature and wind.

c)

Weather: Only refers to rainfall patterns Climate: Only refers to temperature changes.

d)

Weather: Changes in the Earth's crust Climate: Changes in ocean currents.

59.

Which is not a factor that shapes the global climate system?

a)

Solar energy retained in the biosphere

b)

Unequal heat distribution between equator and poles

c)

Distribution of water energy

d)

Latitude differences

60.

The main gases responsible for the greenhouse effect are:

a)

Oxygen, nitrogen, and helium

b)

Carbon dioxide, methane, and water vapor

c)

Hydrogen, argon, and ozone

d)

Neon, ammonia, and sulfur dioxide

61.

What happens if greenhouse gas concentrations increase?

a)

Earth’s temperature decreases

b)

Earth’s temperature stays the same

c)

Earth’s temperature increases

d)

There is no change in temperature

62.

The process in which cold water from deep ocean layers rises to the surface is called:

a)

Upwelling

b)

Downwelling

c)

Evaporation

d)

Condensation

63.

Which of these statements about the greenhouse effect is false?

a)

It helps maintain Earth’s temperature

b)

It is caused by greenhouse gases

c)

It has no impact on Earth’s climate

d)

Without it, Earth would be much colder

64.

Which factor determines how much solar energy an area receives?

a)

Latitude

b)

Altitude

c)

Soil type

d)

Ocean salinity

65.

The most direct sunlight strikes which region?

a)

Polar region

b)

Temperate region

c)

Tropical region

d)

Desert region

66.

Which statement best explains wind formation?

a)

Movement of air due to equal heating

b)

Movement of air due to unequal heating of Earth’s surface

c)

Evaporation of ocean water

d)

Formation of clouds

67.

Which of these affects regional climates?

a)

Latitude, winds, and ocean currents

b)

Cloud color

c)

Soil minerals

d)

Earthquakes

68.

The side of a mountain that receives more rainfall is the:

a)

Downward side

b)

Windward side

c)

Desert side

d)

Sea-facing side

69.

Regional climates are affected by all of the following except:

a)

Winds

b)

Latitude

c)

Greenhouse effect

d)

Ocean currents

70.

Which of the following is not a non-human cause of climate change?

a)

Volcanic activity

b)

Greenhouse gases from industries

c)

Meteorite impacts

d)

Mountain building

71.

Unequal heating of Earth’s surface causes:

a)

Earthquakes

b)

Winds and ocean currents

c)

Rotation of Earth

d)

Lunar tides

72.

Which of the following gases traps heat in Earth’s atmosphere?

a)

Carbon dioxide

b)

Nitrogen

c)

Argon

d)

Oxygen

73.

Climate only refers to temperature changes and nothing else.

a)

True

b)

False

74.

The greenhouse effect helps Earth maintain its temperature balance.

a)

True

b)

False

75.

Solar radiation hits the Earth’s surface at different angles because of its curvature.

a)

True

b)

False

76.

The leeward side of a mountain is usually dry and receives less rainfall.

a)

True

b)

False

77.

Upwelling decreases nutrients available for ocean organisms.

a)

True

b)

False

78.

A biome is defined as:

a)

A. A single plant species

b)

B. A group of identical organisms

c)

C. An area with similar climate, soil, plants, and animals

d)

D. Only abiotic factors

79.

The combination of abiotic and biotic factors is known as:

a)

Biome

b)

Population

c)

Climate zone

d)

Species

80.

Which biome supports the greatest number of species?

a)

Boreal forest

b)

Temperate grassland

c)

Tropical rainforest

d)

Desert

81.

The leafy covering formed by tall trees in the rainforest is called:

a)

Humus

b)

Canopy

c)

Understory

d)

Shrub layer

82.

Which of the following is not an abiotic factor of the desert biome?

a)

High precipitation

b)

Variable temperatures

c)

Low organic matter in soil

d)

Low rainfall

83.

The biome that receives more rainfall than deserts but less than tropical dry forests is:

a)

Temperate forest

b)

Tropical grassland (savanna)

c)

Boreal forest

d)

Tundra

84.

In which biome is a rainy period followed by a drought?

a)

Temperate forest

b)

Desert

c)

Tropical dry forest

d)

Tropical rainforest

85.

Dense forests of coniferous evergreens found in the northern hemisphere are called:

a)

Taiga

b)

Tundra

c)

Desert

d)

Temperate grassland

86.

Decaying leaves and organic matter form a nutrient-rich material known as:

a)

Permafrost

b)

Humus

c)

Canopy

d)

Clay

87.

Which biome is characterized by permanently frozen subsoil?

a)

Taiga

b)

Desert

c)

Tundra

d)

Tropical grassland

88.

In tundra regions, freezing and thawing of soil causes:

a)

Root damage to plants

b)

Increased soil fertility

c)

High water loss

d)

More rainfall

89.

Which plant life is found in polar regions?

a)

Cacti

b)

Mosses and lichens

c)

Conifer trees

d)

Deciduous trees

90.

Marine ecosystems are affected by all except:

a)

Salinity

b)

Temperature

c)

Dissolved nutrients

d)

Soil rich in organic matter

91.

Ecologists divide the ocean based on:

a)

Latitude and longitude

b)

Depth and distance from shore

c)

Salinity and temperature

d)

Ocean currents

92.

The sunlit region near the ocean surface where photosynthesis occurs is the:

a)

A. Aphotic zone

b)

B. Photic zone

c)

C. Coastal zone

d)

D. Deep zone

93.

The dark ocean layer where no photosynthesis occurs is called:

a)

Photic zone

b)

Intertidal zone

c)

Aphotic zone

d)

Open ocean

94.

Which ecosystem forms where a river meets the sea?

a)

Wetland

b)

Estuary

c)

Coral reef

d)

Open ocean

Term 1 - Final quiz grade 9

Total questions: 94

Worksheet time: 47mins

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