a1. The a) in the skin b) in a tendon c) in the aorta d) in lung tissue 22. The

Question

a1. The a) in the skin b) in a tendon c) in the aorta d) in lung tissue 22. The basic structural and functional units of an a) tissue level b) organ level organi-are found the: c) cellular level d) chemical level 23. This system in the human body returns proteins and fluid to blood. a) Lymphatic System b) Cardiovascular System c) Urinary System d) Digestive System 24. The process during which unspecialized cells become specialized is know a) responsiveness b) distinction c) differentiation d) metabolism 25. Building up of complex chemical substances from smaller, simple a) catabolism b) anabolism c) metabolism d) reproduction

Explanation / Answer

21)b) dense connective tissue is found in tendons and ligaments

Collagen fibres are densly packed and arranged in parallel

22)c)is found in the cellular level

Cells are basic building blocks of all living organisms

It is the smallest unit of life and can replicate independently

23)a) it is the lymphatic system

Lymph is the fluid that circulates throughout the lymphatic system

Lymph returns proteins and excess interstitial fluid to the blood stream

24)c) it is called differentiation

Unspecialised cells are called stem cells

Specialised cells are mature cells which take up a particular function

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