Biology TEKS 10.A

When you look at a drop of blood under a microscope what are you most likely going to see?

• atoms

• cells

• dust

• water

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A lot of cells of the same kind join together to form-

• Tissue

• Cells

• Organs

• Organ systems

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Identify the correct order.

• cells < organs < organs < systems

• tissues < cells < organs < systems

• cells < tissues < organs < systems

• cells < tissues < systems < organs

What is responsible for delivering oxygen and removing carbon dioxide from the body?

• cell nucleus

• excretory system

• nervous tissue

• respiratory system

Which of the following is a characteristic feature of eukaryotic cells?

• Lack of a nucleus

• Presence of a cell wall in all cells

• Presence of membrane-bound organelles

• Smaller size compared to prokaryotic cells

What is the primary role of mitochondria in eukaryotic cells?

• To synthesize proteins

• To digest food particles

• To produce energy in the form of ATP

• To store genetic information

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The main purpose of the ____________ system is to break food particles into pieces that can be used.

• circulatory

• respiratory

• digestive

• skeletal

The skin is the major organ in which system?

• Integumentary

• Muscular

• Endocrine

• Immune

How does the respiratory system depend on the circulatory system in order to function?

• The circulatory system brings waste gases to the lungs and exchanges them for oxygen.

• The circulatory system provides structural support and protection to the respiratory system.

• The circulatory system pushes gases out of the body through the mouth and nose.

• The circulatory system sends messages to the lungs so that one can breathe in and out.

What do both single and multi-celled organisms have in common?

• They need water.

• They need to be complicated.

• They need money.

• They need energy.

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