1. Define what a cell is- A cell is the basic unit of all living things except viruses.

2. What are the differences between a plant and animal cells- Beyond size, the main structural differences between plant and animal cells lie in a few additional structures found in plant cells.

3. Use labeled diagrams or models to illustrate similarities and differences between plant and animal cell structures and describe their functions- Animal cells do not have a cell wall or chloroplasts but plant cells do. Animal cells are round and irregular in shape while plant cells have fixed, rectangular shapes.

4. Describe the function of three of the following cells: muscle, nerve, bone, cartilage, secretory, epithelial, adipose, blood-

Muscle- a band or bundle of fibrous tissue in a human or animal body that has the ability to contract, producing movement in or maintaining the position of parts of the body.

Nerve- a whitish fiber or bundle of fibers that transmits impulses of sensation to the brain or spinal cord, and impulses from these to the muscles and organs.

Bone- any of the pieces of hard, whitish tissue making up the skeleton in humans and other vertebrates.

Cartilage- firm, whitish, flexible connective tissue found in various forms in the larynx and respiratory tract, in structures such as the external ear, and in the articulating surfaces of joints. It is more widespread in the infant skeleton, being replaced by bone during growth.

Secretory- of, relating to, or promotingsecretion; also : produced by secretion.

Epithelial- Epithelium is one of the four basic types of animal tissue, along with connective tissue, muscle tissue and nervous tissue.

Adipose- used for the storage of fat.

Blood- the red liquid that circulates in the arteries and veins of humans and other vertebrate animals, carrying oxygen to and carbon dioxide from the tissues of the body.

5. Explain the relationship between tissues that make up individual organs and the functions the organ performs (ex: valves in the heart control blood flow) -Tissues are made up of groups of cells that all have a similar function and structure. Some examples of tissues include muscles, bones, skin and the lining of the stomach, lungs and intestines. The lining of the stomach is just one of the many tissues that have joined together to form the organ, as it also contains muscles, mucus membrane tissue and many other tissue types.

6. Describe the components and functions of the digestive, circulatory, and respiratory systems in humans and how these systems interact- Your digestive system is uniquely constructed to perform its specialized function of turning food into the energy you need to survive and packaging the residue for waste disposal. To help you understand how the many parts of the digestive system work together, here is an overview of the structure and function of this complex system.

7. Find a picture that shows the three systems mentioned in #6. One picture for EACH system. 3 pictures total.

8. Find a picture of a LABELED Paramecium, include it in your #Tackk, describe your observations about it and how it compares to other organisms and how they function/survive.