Unit 1 Review

The tongue is an example of an organ that assists in the process of digestion. Which of the following best describes the level of structural organization for organs like the tongue?

• It is less complex than a tissue
• It is more complex than a tissue
• It is less complex than a cell
• It is more complex than an organ system.

Which of the following best describes the internal feedback system that occurs between the respiratory system and the circulatory system?

• Increased activity increases the need for oxygen within an organism. This stimulates an increase in the respiratory rate. An increased respiratory rate stimulates a decreased heart rate, which in turn causes additional oxygen to be supplied to the muscles.
• Increased activity decreases the need for oxygen within an organism. This stimulates a decrease in the respiratory rate. A decreased respiratory rate stimulates a decreased heart rate, which in turn causes reduced amounts of oxygen to be supplied to the muscles.
• Increased activity decreases the need for oxygen within an organism. This stimulates a decrease in the respiratory rate. A decreased respiratory rate stimulates an increased heart rate, which in turn causes reduced amounts of oxygen to be supplied to the muscles.
• Increased activity increases the need for oxygen within an organism. This stimulates an increase in the respiratory rate. An increased respiratory rate stimulates an increased heart rate, which in turn causes additional oxygen to be supplied to the muscles.

Which level of organization is this?

• Tissue
• Fertilized Egg
• Organ
• Organ System

The picture shows a cell containing both a vesicle carrying starches, fats, and proteins, and a lysosome holding enzymes that break down these molecules

• Temperature Regulation
• Food digestion
• Waste Elimination
• Sexual Reproduction

Endocrine glands secrete hormones directly into the blood. The blood carries the hormones throughout the body. Each hormone acts only upon the organ that recognizes it. During this process, the endocrine glands work in conjunction with which body system?

• Nervous
• Circulatory
• Excretory
• immune

A rose is made up of many plant cells that work together to form the tissues of the rose. The tissues work together to perform a specific function within the rose. Which best describes the organization level that would come next?

• The organ systems of the rose work together to form the rose.
• The organs work together to form the organ systems of the rose.
• The organism works together with the soil to build the rose.
• The cells work together to form the organs of the rose.

As a human red blood cell matures, it loses its nucleus. As a result of this loss, what does a mature red blood cell lack the ability to do?

• pass through the walls of arteries
• take in material from the blood
• carry out cell division
• release hormones

The spinal cord, a long tubular structure that connects to the brain, is protected by the vertebrae. In this situation, the

• endocrine system works in conjunction with the respiratory system.
• nervous system works in conjunction with the skeletal system.
• digestive system works in conjunction with the excretory system.
• muscular system works in conjunction with the nervous system.

The human body creates more carbon dioxide while exercising than when it is at rest. Which of the following best explains how the systems in the human body work together to maintain homeostasis and remove excess carbon dioxide?

• The respiratory system takes in more oxygen, and the blood transports the oxygen and carbon dioxide to and from the tissues.
• The circulatory system takes in less carbon dioxide, and the lungs transport more oxygen to and from the tissues.
• The respiratory system takes in less carbon dioxide, and the heart pumps more oxygen to and from the tissues.
• The circulatory system takes in more oxygen, and the skin transports the oxygen and carbon dioxide to and from the tissues.

Which of the following best describes the interaction between the nervous system and the immune system?

• The nervous system circulates oxygen gathered by the immune system
• The nervous system directs cells manufactured by the immune system.
• The nervous system dumps waste accumulated by the immune system.