Life Science Review

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What is an inherited trait?

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An inherited trait is a characteristic that is passed down from parents to their offspring through genes. Examples include eye color, hair type, and the presence of thorns in roses.

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What are microorganisms?

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Microorganisms are tiny living organisms that can only be seen with a microscope. They include bacteria, viruses, fungi, and protozoa.

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What is a helpful microorganism?

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A helpful microorganism is one that provides benefits to humans or the environment, such as yeast used in baking, bacteria that help in digestion, or microbes that clean up oil spills.

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What is a vertebrate?

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A vertebrate is an animal that has a backbone. Examples include fish, amphibians, reptiles, birds, and mammals.

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What is a fish?

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Fish are vertebrates that live in water, have gills for breathing, and usually have fins and scales.

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What is a cell wall?

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A cell wall is a rigid outer layer that provides support and protection to certain cells, such as plant cells. It is not found in animal cells.

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What are invertebrates?

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Invertebrates are animals that do not have a backbone. Examples include insects, worms, and jellyfish.

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What is the function of thorns on a rose?

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Thorns on a rose serve as a defense mechanism to protect the plant from herbivores.

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What is the role of bacteria in the human body?

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Some bacteria in the human body are beneficial and help with digestion, while others can cause diseases.

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What is the difference between a virus and bacteria?

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Viruses are smaller than bacteria and cannot reproduce on their own; they need a host cell to replicate. Bacteria are single-celled organisms that can live independently.