1) What is the longest bone in your body? a) tibia b) femur c) humerus d) skull 2) Which system pushes and pulls on bones to move them? a) respiratory b) circulatory c) skeletal d) muscular 3) What is the largest organ in the human body? a) skin b) heart c) brain d) lungs 4) The heart, veins, and arteries are part of which system? a) skeletal b) muscular c) digestive d) circulatory 5) What an organism eats is called its ____________? a) function b) diet c) coordination d) exercise 6) Which system controls body functions and controls all other systems of the body? a) muscular b) respiratory c) circulatory d) nervous 7) Which system breaks food down into simple substances, absorbs nutrients from food, and gets rid of waste? a) digestive b) circulatory c) muscular d) skeletal 8) What two things do we need to keep our bodies healthy in order to prevent noncommunicable diseases?  a) sleep b) physical fitness (exercise) c) proper nutrients d) masks 9) Which system includes the brain, spinal cord, and nerves? a) respiratory b) muscular c) nervous d) circulatory 10) Which system has the job of taking air into (oxygen) and out of (carbon dioxide) the body? a) respiratory b) circulatory c) skeletal d) digestive 11) Which system supports and protects the body? a) muscular b) digestive c) nervous d) skeletal 12) What is the ability to use different parts of the body together? a) function b) mechanical energy c) coordination d) organ 13) What is a set of tissues that make up a structure that perform a specific function? a) organ b) function c) coordination d) interactions 14) What are 2 characteristics of skin? a) it's the smallest organ in the body b) is flexible c) is not flexible d) is the body's first defense against germs  15) Heart disease, diabetes, and asthma are examples of which type of disease? a) communicable b) noncommunicable 16) What are actions by one thing that have a different effect on a separate thing? a) interactions b) coordination c) function d) diet 17) What is any body movement that requires energy and moves your muscles? a) diet b) coordination c) function d) exercise 18) Cardiac, smooth, and skeletal are types of ______________? a) bones b) muscles c) organs d) arteries 19) The lungs, trachea, and diaphragm are part of which body system? a) respiratory b) circulatory c) digestive d) nervous 20) Which CAN be transferred from one human to another? a) noncommunicable b) communicable 21) What is the process called by which animals use oxygen and food to make energy and carbon dioxide? a) interaction b) digestion c) circulation d) respiration 22) What is all the energy something has due to its movement and position called? a) coordination b) mechanical energy c) exercise d) respiration 23) Physical fitness uses and strengthens ________________? a) coordination b) digestion c) muscles d) interactions 24) What is a group of organs that work together to carry out a specific task called? a) organ system b) nervous system c) circulatory system d) muscular system

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