Bio 201 Rio Salado Exam 1 questions and verified correct answers 2023

Explain the principle of complementarity. - correct answer Anatomy and physiology are inseparable because function always reflects structure examples.) bones support and protect body organs because they contain hard mineral deposits and, blood flows in one direction through the heart because the heart has valves that prevent back flow. Levels of structural organization (in order of increasing complexity) - correct answer1) Chemical Level- At this level atoms, tiny building blocks of matter combine to form molecules such as water and proteins. 2) Cellular Level- All cells have some common functions, but individual cells vary widely in size and shape, reflecting their unique functions in the body. 3) Tissue Level- Tissues are groups of similar cells that have a common function 4) Organ Level- Organs are made up of different tissues. 5) Organ (System) level- Organ systems consist of different organs that work together closely. 6) Organismal Level- The human organism is made up of many organ systems. 11 Organ systems of the body (major functions) - correct answer1) Integumentary System- Forms the external body covering. 2) Skeletal System- Protects and supports body organs. 3) Muscular System- Allows manipulation of the environment, locomotion, and facial expressions. 4) Lymphatic System- Picks up fluid leaked from blood vessels and returns it to the blood 5) Respiratory System- Keeps blood constantly supplied with oxygen and removes carbon dioxide. 6) Digestive System- Breaks down food into absorbable units that enter the blood for distribution to body cells. 7) Nervous System- Fast acting control system of the body. 8) Endocrine System- Glands secrete hormones that regulate processes such as growth, reproduction, and nutrient use. 9)Cardiovascular System- Blood vessels transport blood, which carries oxygen, carbon dioxide, nutrients , wastes, etc. 10) Urinary System- Eliminates nitrogenous wastes from the body.