Genus Definition: A group of closely related species that share common characteristics. What do organisms in the same genus have in common?

They are closely related and share common traits.

They live in the same environment.

They all belong to the same family.

Species Definition: The most specific level of classification, consisting of organisms that can interbreed and produce fertile offspring. What defines organisms as belonging to the same species?

They can interbreed and produce fertile offspring.

They share the same genetic material.

Binomial Nomenclature Definition: The system of giving each species a two-part scientific name, using its genus and species. How does binomial nomenclature help scientists classify organisms?

It assigns a unique two-part name to every organism based on its genus and species.

It groups organisms based on their diet.

It tells scientists the size of the organisms.

It gives every organism a number for identification.

Prokaryote Definition: A simple, single-celled organism without a nucleus, such as bacteria. Which of the following describes a prokaryote?

It has no nucleus and is usually unicellular.

It has a nucleus and membrane-bound organelles.

It is a multi-cellular organism.

It contains chloroplasts for photosynthesis.

Eukaryote Definition: Organisms with cells that have a nucleus and membrane-bound organelles. What makes eukaryotic cells different from prokaryotic cells?

Eukaryotic cells have a nucleus.

Eukaryotic cells are unicellular.

Eukaryotic cells have no organelles.

Eukaryotic cells are found only in plants.

Heterotroph Definition: An organism that cannot make its own food and must consume other organisms for energy. Which of the following is a characteristic of a heterotroph?

It consumes other organisms for energy.

It produces its own food through photosynthesis.

It is capable of making its own nutrients.

It does not need energy to survive.

Autotroph Definition: An organism that can produce its own food, typically through photosynthesis. Which of the following describes an autotroph?

It uses sunlight to make its own food.

It consumes plants or animals for food.

It breaks down food for energy.

It relies on other organisms for nutrients.

Photosynthesis Definition: The process by which plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. What is the purpose of photosynthesis in plants?

To convert sunlight into chemical energy and produce food for the plant.

To produce energy from food they consume.

Archaebacteria Definition: A group of microorganisms that are single-celled and live in extreme environments. Where do archaebacteria typically live?

In extreme environments like hot springs or deep-sea vents.

In oceans, but only in shallow waters.

Eubacteria Definition: A group of bacteria that are found in many different environments, including soil, water, and the human body. What is a common characteristic of eubacteria?

They are single-celled organisms found in a wide range of environments.

They can only live in extreme conditions.

They are multicellular organisms.

Protist Definition: A diverse group of eukaryotic microorganisms, which may be unicellular or multicellular. Which of the following is true about protists?

They are simple, unicellular organisms found in water and soil.

They are only multicellular organisms.

Membrane Definition: A thin layer of material that surrounds cells or organelles within cells, controlling what enters and exits. What is the function of a cell membrane?

It controls what enters and exits the cell.

It helps the cell produce energy.

It protects the cell from harmful radiation.

Organelles Definition: Specialized structures within a cell that perform specific functions. What is the role of organelles in a cell?

They perform specific functions, like energy production or protein synthesis.

They help the cell maintain its shape.

They store the cell's genetic material.

Adaptation Definition: A characteristic or trait that increases an organism's chances of survival in a specific environment. What is an example of an adaptation?

An animal’s ability to change color to blend in with its environment.

An animal’s ability to move faster than others.

An animal’s ability to consume a large amount of food.

An animal’s ability to sleep for long periods.

Species Diversity Definition: The variety of different species in an ecosystem. Why is species diversity important in an ecosystem?

It allows ecosystems to be more resilient to changes.

It reduces competition for resources.

It increases the chances of organisms living in the ecosystem.

It eliminates the need for decomposers.

Ecological Niche Definition: The role an organism plays in its ecosystem, including how it gets its food, where it lives, and how it interacts with other organisms. What is an organism’s ecological niche?

Its job or role in the ecosystem, including how it interacts with other species.

The temperature range in which it can survive.

Its location on the food chain.

Characteristics Definition: Features or traits of an organism that help identify it. What would be considered a characteristic of a plant?

The type of cells it is made of and its ability to photosynthesize.

Its ability to move from one place to another.

Its ability to reproduce sexually.

Structure Definition: The arrangement or organization of parts within an organism. What is an example of the structure of a leaf?

The cells that make up the leaf and the veins that transport nutrients.

The type of animal that eats the leaf.

The process of photosynthesis in the leaf.

Evidence Definition: Information or data used to support a conclusion or hypothesis. What is an example of evidence in science?

A guess about what will happen.

A theory with no supporting data.

System Definition: A group of related parts working together to perform a function. Which of the following is an example of a biological system?

The digestive system in humans.

The random arrangement of molecules in a substance.

The wind moving through the trees.

The movement of water in rivers.

Relationship Definition: The way in which two or more things are connected or interact with each other. What is an example of a relationship in nature?

An animal moving from one place to another.

A rock breaking into smaller pieces.

Environment Definition: The surroundings or conditions in which an organism lives. Which of the following is part of an organism’s environment?

The temperature of the area it lives in.

Interaction Definition: The action or influence between two or more organisms or things. Which of the following is an example of an interaction between organisms?

A tree growing taller over time.

Function Definition: The specific role or purpose of a part or organ in an organism. What is the function of the mitochondria in a cell?

To produce energy for the cell.

To store the cell’s genetic information.

To protect the cell from harmful substances.

To regulate what enters and exits the cell.

Complex Definition: Involving many parts or steps; complicated. Which of the following is an example of a complex structure in biology?

A multi-organ system in an animal, like the circulatory system.

Analyze Definition: To examine something carefully in order to understand it or to draw conclusions. What does it mean to analyze data in an experiment?

To look at the data carefully and interpret what it means.

To guess what the outcome will be.

To ignore the data and make conclusions based on prior knowledge.

To collect data from only one source.

Observe Definition: To look at something carefully in order to gain information. Which of the following is an example of an observation in a science experiment?

Recording the temperature of water during an experiment.

Deciding on an experiment to run.

Making a prediction about the results.

Hypothesis Definition: A proposed explanation based on limited evidence, which can be tested by further investigation. What is a hypothesis in a scientific experiment?

A guess about what might happen based on existing knowledge.

A statement of the final conclusion.

A fixed fact that cannot be tested.

The method of conducting an experiment.

Organized Definition: Arranged in a structured or systematic way. Why is it important for scientists to organize their data during an experiment?

To make it easier to draw conclusions and understand patterns.

So they can ignore any confusing results.

To confuse other scientists who try to repeat the experiment.

To prevent mistakes during the experiment.

Variable Definition: A factor that can change in an experiment. Which of the following is a variable in an experiment testing plant growth?

The amount of water given to the plant.

The type of plant being tested.

The time of day when the plant is observed.

Model Definition: A representation or simulation of an object or system used to understand or explain it. What is the purpose of using a model in science?

To make experiments easier and safer to conduct.

To replace the actual object or system.

To prevent scientists from making mistakes.

To avoid the need for observations or experiments.

Similarity Definition: The quality of being alike or having common features. What is a similarity between plants and animals?

Both are made of eukaryotic cells.

Both can perform photosynthesis.

Both can produce energy without sunlight.

Distinguish Definition: To recognize or point out the differences between two or more things. How do scientists distinguish between different types of cells?

By examining their structures and functions.

By determining how many animals are in each group.

Unit 5 Test Vocabulary Specific

Quiz

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Science

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7th Grade

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Practice Problem

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Medium

JUSTYN OLSON

Used 5+ times

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A group of related genera.

A group of unrelated species.

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