Select the correct order of levels of organization from organelle to biosphere, with a brief description of each level.

Organelle, Cell , Tissue, Organ , Organ system, Organism, Population, Community, Ecosystem , Biosphere

Organelle, Tissue, Cell, Organ, Organ system, Organism, Population, Community, Ecosystem, Biosphere

Organelle, Cell, Organ, Tissue, Organ system, Organism, Population, Community, Ecosystem, Biosphere

Organelle, Cell, Tissue, Organ system, Organ, Organism, Population, Community, Ecosystem, Biosphere

What is the primary function of the Circulatory system?

Transport Oxygen, Nutrients, Hormones throughout body

Produce digestive enzymes for food breakdown

Transmit electrical signals to control body functions

Filter waste products from the blood

What is the main function of the Urinary/Excretory system?

Removal of metabolic waste from blood, and ultimate removal from the body

Production of hormones for growth and development

Absorption of nutrients from digested food

Transmission of nerve impulses throughout the body

What is the primary function of the Endocrine system?

Production of hormones to regulate body processes and respond to changes in the internal environment

Transporting oxygen and nutrients throughout the body

Breaking down food to absorb nutrients

Providing structural support and protection for organs

What is the main function of the Reproductive system?

Continuation of the species! Create and nourish offspring

Filtration of blood and removal of waste

List the four types of tissues, examples of each, and their major functions. What is the major function of epithelial tissue?

Covers body surfaces, lines internal cavities and forms glands

Transmits electrical impulses throughout the body

Provides structural support and stores minerals

List the four types of tissues, examples of each, and their major functions. What is the major function of nervous tissue?

Transmits electrical impulses for communication and control

Provides structural support and protection

Covers body surfaces and lines cavities

List the four types of tissues, examples of each, and their major functions. What is an example of muscle tissue?

Skeletal, cardiac, smooth and elastic

Epithelial, connective, muscle, and nervous

Bone, blood, cartilage, and tendon

Adipose, areolar, reticular, and fibrous

List the four types of tissues, examples of each, and their major functions. What is the major function of muscle tissue?

Contracts to produce movement and generate heat

Transmits electrical impulses to coordinate body activities

Forms protective barriers and absorbs nutrients

Stores fat and provides insulation

What is the function of the Cell Membrane?

Regulates nutrients, waste, O2, CO2, water as it exits the cell; attaches to other cells to form tissue and communicate, and sense their environment.

Produces energy for the cell by breaking down glucose.

Stores genetic information and controls cell activities and Regulates nutrients, waste, O2, CO2, water as it exits the cell

Synthesizes proteins and transports them throughout the cell.

What is the function of the Cytoplasm?

Jelly-like substance that gives cell structure, also allows for a simple breakdown of carbohydrates for energy production.

Controls the activities of the cell and contains genetic material.

Produces energy through cellular respiration.

Synthesizes proteins for the cell.

What is the function of the Nucleus?

Contains and protects the DNA of the cell, surrounded by a membrane that regulates what enters and exits the nucleus.

Produces energy for the cell by breaking down glucose. and surrounded by a membrane that regulates what enters and exits the nucleus

Synthesizes proteins and lipids for the cell.

Controls the movement of substances in and out of the cell through active transport.

What is the function of Ribosomes?

Small structure that reads instructions to build proteins (found in ALL cells.)

Organelles that store genetic information

Structures responsible for cellular respiration

Organelles that digest waste materials

What is the function of the Mitochondria?

Where cellular respiration occurs, provides energy for the cell.

It stores genetic information and controls cell activities.

It is responsible for protein synthesis in the cell.

It provides structural support and protection to the cell.

What is the function of the Cell Wall?

Provides structure, shape, and support as the outer edge of cell; found in bacteria, fungi, plants.

Controls the movement of substances in and out of the nucleus.

Produces energy for the cell through cellular respiration.

Stores genetic information and coordinates cell activities.

What is the function of the Chloroplast?

Part of a plant cell responsible for Photosynthesis! This structure takes in Sunlight, Water, and CO2 and builds glucose, storing the energy in the bonds of the sugar.

It stores genetic information and controls cell activities.

It is responsible for breaking down waste and cellular debris.

It provides structural support and protection to the cell.

What is the function of the Vacuole?

Part of a plant cell that holds water as storage which helps plants to stand upright.

It produces energy for the cell through respiration.

It controls all the activities of the cell.

It is responsible for protein synthesis in the cell.

Which of the following statements correctly compares eukaryotic and prokaryotic cells?

Prokaryotes are smaller, simpler cells without a nucleus, while eukaryotes are larger, more complex cells with a nucleus and membrane-bound organelles.

Prokaryotes are more complex and have a true nucleus and membrane-bound organelles, while eukaryotes do not.

Eukaryotes are smaller and simpler than prokaryotes, lacking a nucleus.

Both prokaryotes and eukaryotes have a true nucleus and the same organelles.

Homeostasis is defined as:

the maintenance of a stable internal environment in an organism

the process of breaking down food for energy

the ability to move from one place to another

the conversion of oxygen to carbon dioxide in cells

What is the correct order of the four stages of a control system?

Receptor sends information to control system

What are the two main ways the body communicates/sends signals? How do they differ?

Nervous system and endocrine system are the two main ways the body communicates. They differ in speed and method: the nervous system uses electrical signals for fast communication, while the endocrine system uses hormones for slower, longer-lasting effects.

Digestive system and respiratory system are the two main ways the body communicates. They differ in the type of food and air processed.

Skeletal system and muscular system are the two main ways the body communicates. They differ in movement and support.

Circulatory system and lymphatic system are the two main ways the body communicates. They differ in blood and lymph transport.

What is a negative feedback loop?

A negative feedback loop senses a change and causes a response to return conditions to normal, counteracting the change and triggering a response in the opposite direction of the change.

A negative feedback loop senses a change and causes a response to return conditions to normal and amplifies the initial change, causing conditions to move further away from normal.

A negative feedback loop ignores changes in the environment and maintains the current state.

A negative feedback loop only occurs in artificial systems and not in biological systems.

What is a positive feedback loop?

A positive feedback loop senses a change and triggers a domino effect of increasingly intense response, reinforcing the change until the problem is corrected.

A positive feedback loop senses a change and immediately stops all responses to maintain stability.

A positive feedback loop reduces the intensity of a response to return to the original state.

A positive feedback loop ignores changes and maintains the current state regardless of external factors.

List two examples, and very briefly describe, how plants maintain homeostasis:

The leaf has stomata cells that have a specialized function to open and close to allow for the gas exchange of O2 out and CO2 in.

Roots absorb sunlight to help the plant fly.

Flowers release oxygen at night to attract insects.

Stems store water to prevent the plant from growing too tall.

What is the independent variable in an experiment?

The variable that will be tested. In a well designed experiment, only one factor is changed to be tested.

The variable that is measured as a result of the experiment.

A variable that is kept constant throughout the experiment.

A variable that is not related to the experiment.

How many independent variables should a scientific investigation have? Why?

Each experiment should only have ONE independent variable. If more than one IV than you can’t claim the IV was responsible for the change. If other relevant factors also change, then the experimenters will not know which factor(s) influenced the results. It is included as part of the hypothesis: the effect of the IV on the DV.

Each experiment should have multiple independent variables to ensure a variety of results. This allows experimenters to see the combined effect of all variables.

A scientific investigation should not have any independent variables, as this keeps the experiment unbiased and neutral.

The number of independent variables does not matter as long as the dependent variable is measured accurately.

What is the dependent variable in an experiment?

The variable that responds or shows change. This is the data that is collected to observe the change due to the IV. It is included as part of the hypothesis: the effect of the IV on the DV.

The variable that is intentionally changed or manipulated by the experimenter.

A constant factor that does not change during the experiment.

The equipment used to measure the results of the experiment.

What is a control group in a scientific investigation?

This is the group of the experiment with a measured data which doesn’t consist of the IV. This is used as the base-line or normal results that are used to compare the tested data results. This is needed to determine if the tested data has changed as a result of the experiment.

This is the group that always receives the independent variable in the experiment.

This is the group that is not measured during the experiment.

This is the group that is used to create the hypothesis for the experiment.

What are constants in a scientific experiment?

Other relevant factors are held constant (don’t change) so that the experimenter(s) can identify the effect of the IV on the DV.

Variables that are always changed to see different results.

The main variable being tested in the experiment.

The results measured at the end of the experiment.

When making a graph, where does the independent variable go?

IV on X axis (horizontal) DV on Y axis (vertical)

IV on Y axis (vertical) DV on X axis (horizontal)

IV on both axes DV on neither axis

IV and DV can be placed on any axis

Which model best illustrates the hierarchical organization of interacting systems that provide specific functions within multicellular organisms?

A diagram showing cells, tissues, organs, and organ systems working together

A list of chemical elements found in the body

A timeline of organism development from birth to death

A chart of food chains in an ecosystem

Multicellular organisms are made up of numerous parts organized into a hierarchical system of interacting systems that provide specific functions. Which of the following best illustrates this hierarchical organization?

Cells → Tissues → Organs → Organ Systems → Organism

Organs → Tissues → Cells → Organ Systems → Organism

Tissues → Cells → Organs → Organ Systems → Organism

Organ Systems → Organs → Tissues → Cells → Organism

Feedback mechanisms maintain an organism’s internal conditions within certain limits and mediate behaviors by:

Detecting changes and triggering responses to restore balance

Allowing internal conditions to fluctuate without control

Preventing any changes in the internal environment

Ignoring external stimuli and maintaining a constant state

The relationship between the biosphere, atmosphere, hydrosphere, and geosphere involves:

interacting systems that support life on Earth

separate layers that do not affect each other

only the biosphere being important for life

the geosphere controlling all other spheres

UNIT 1 TEST REVIEW/READING GUIDE

Authored by Francis Science

Science

8th Grade

NGSS covered

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is meant by the term 'feedback'?

All living organisms sense and respond to changes in their environment a cell senses change and that information triggers a response.

All living organisms sense and respond to changes in their environment and process by which organisms grow and develop over time.

Feedback refers to the way organisms obtain energy from food.

Feedback is the method by which cells divide and reproduce.

Tags

NGSS.MS-LS2-1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the four main spheres? Select the correct statement.

a. Biosphere - consists living organisms. b. Geosphere - consists of rocks, continental plates, lava, sand. c. Atmosphere - consists of gases, Water (H2O), Carbon Dioxide (CO2), Oxygen (O2), clouds, dust, Insects, spores, birds, bacteria. d. Hydrosphere - consists of water, nutrients.

a. Biosphere - consists of living organisms. b. Lithosphere - consists of melted rocks. c. Cryosphere - consists of frozen water. d. Hydrosphere - consists of water, nutrients.

a. Geosphere - consists of gases, Water (H2O), Carbon Dioxide (CO2), Oxygen (O2), clouds, dust, Insects, spores, birds, bacteria. b. Biosphere - consists of rocks, continental plates, lava, sand. c. Atmosphere - consists of living organisms. d. Hydrosphere - consists of frozen water.

a. Cryosphere - consists of living organisms. b. Geosphere - consists of water, nutrients. c. Atmosphere - consists of rocks, continental plates, lava, sand. d. Biosphere - consists of gases, Water (H2O), Carbon Dioxide (CO2), Oxygen (O2), clouds, dust, Insects, spores, birds, bacteria.

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-4

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which statement correctly explains biotic and abiotic terms?

a. Biotic - Living or once living = LIFE . Abiotic - Never living or NOT LIFE

a. Biotic - Never living = NOT LIFE b. Abiotic - Living or once living = LIF

a. Biotic - Only rocks and water b. Abiotic - Only plants and animal

a. Biotic - Sunlight and air b.Abiotic - Trees and fish

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The criteria an organism must meet in order to be considered alive include:

Growth, reproduction, response to stimuli, metabolism, cellular organization, and homeostasis.

Ability to fly, glowing in the dark, having fur, and living in water.

Being visible to the naked eye, making sounds, and moving quickly.

Having a backbone, eating plants, and living on land.

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-5

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Scientists do not consider viruses to be living because:

They cannot reproduce on their own.

They have a cell membrane.

They can move independently.

They use energy for metabolism.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Fill in the blank: Biotic organisms have at least ________.

one cell

one organ

one tissue

one nucleus

Tags

NGSS.MS-LS1-2

NGSS.MS-LS1-1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Fill in the blank: Biotic organisms respond to their ________.

environment

color

size

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-4

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UNIT 1 TEST REVIEW/READING GUIDE

What is meant by the term 'feedback'?

What are the four main spheres? Select the correct statement.

Which statement correctly explains biotic and abiotic terms?

The criteria an organism must meet in order to be considered alive include:

Scientists do not consider viruses to be living because:

Fill in the blank: Biotic organisms have at least ________.

Fill in the blank: Biotic organisms respond to their ________.

Fill in the blank: Biotic organisms maintain ________.

Fill in the blank: Biotic organisms ________ over time.

Fill in the blank: Biotic organisms have / genetic code.

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Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Science

UNIT 1 TEST REVIEW/READING GUIDE

What is meant by the term 'feedback'?

What are the four main spheres? Select the correct statement.

Which statement correctly explains biotic and abiotic terms?

The criteria an organism must meet in order to be considered alive include:

Scientists do not consider viruses to be living because:

Fill in the blank: Biotic organisms have at least ________.

Fill in the blank: Biotic organisms respond to their ________.

Fill in the blank: Biotic organisms maintain ________.

Fill in the blank: Biotic organisms ________ over time.

Fill in the blank: Biotic organisms have ________/________ genetic code.

Access all questions and much more by creating a free account

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Fill in the blank: Biotic organisms have / genetic code.