*7.13ABCD Human Body Systems & Changes in Populations Review

What is the primary function of the circulatory system in the human body?

• To break down food into nutrients

• To transport oxygen and nutrients to cells

• To remove waste products from the body

• To protect the body from infections

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TEKS.SCI.7.13A

Which of the following systems is responsible for producing hormones in the human body?

• Digestive system

• Endocrine system

• Respiratory system

• Skeletal system

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TEKS.SCI.7.13A

Identify the correct sequence of organization from simplest to most complex in living organisms.

• Organ, tissue, cell, organ system, organism

• Cell, tissue, organ, organ system, organism

• Tissue, cell, organ system, organ, organism

• Organ system, organ, tissue, cell, organism

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TEKS.SCI.7.13B

Which of the following best describes the role of tissues in the body?

• Tissues are groups of similar cells that perform a specific function.

• Tissues are the smallest unit of life.

• Tissues are responsible for producing energy in the body.

• Tissues are the main organs of the body.

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TEKS.SCI.7.13B

Explain how the muscular and skeletal systems work together to facilitate movement.

• The muscular system provides the framework, while the skeletal system contracts to move the body.

• The skeletal system provides the framework, while the muscular system contracts to move the body.

• Both systems work independently to facilitate movement.

• The muscular system stores calcium, which is used by the skeletal system for movement.

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TEKS.SCI.7.13A

How does the respiratory system interact with the circulatory system to maintain homeostasis?

• The respiratory system filters blood, while the circulatory system transports oxygen.

• The respiratory system provides oxygen to the blood, which the circulatory system delivers to cells.

• The circulatory system removes carbon dioxide, while the respiratory system transports nutrients.

• Both systems work to digest food and absorb nutrients.

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TEKS.SCI.7.13A

Compare the diversity of offspring produced by asexual reproduction to that of sexual reproduction.

• Asexual reproduction results in more diverse offspring than sexual reproduction.

• Sexual reproduction results in more diverse offspring than asexual reproduction.

• Both types of reproduction result in equally diverse offspring.

• Neither type of reproduction results in diverse offspring.

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TEKS.SCI.7.13C

Which of the following is an example of asexual reproduction in plants?

• Pollination

• Budding

• Fertilization

• Germination

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TEKS.SCI.7.13C

Describe how natural selection can lead to changes in a population over time.

• Natural selection causes all individuals in a population to become identical.

• Natural selection favors individuals with advantageous traits, increasing their frequency in the population.

• Natural selection eliminates all genetic variation in a population.

• Natural selection randomly changes traits in a population without any advantage.

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TEKS.SCI.7.13D

Which of the following is an example of artificial selection?

• A population of birds developing longer beaks over generations due to food availability.

• Farmers breeding cows to produce more milk.

• A species of fish evolving to survive in colder waters.

• A forest of trees adapting to resist drought.

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TEKS.SCI.7.13D