Describe the general functions of the major systems of the human body.

Integumentary System: acts as a barrier to protect the body from the outside world (ie. skin, hair, and nails)

Circulatory System: carries oxygen and nutrients to cells, carries waste away from cells (ie. heart and blood vessels (veins and arteries))

Digestive System: converts food into molecules that can be used by cells (ie. mouth, esophagus, stomach, small intestine, large intestine)

Respiratory System: provides oxygen to the blood and removes carbon dioxide from the body  (ie. nose, mouth, pharynx (throat), trachea, and lungs)

Immune System: fights off illness and disease  (ie. lymph nodes, white blood cells, and spleen)

Muscular System: allows for movement  (ie. cardiac muscles, skeletal muscles, and smooth muscles)

Nervous System: coordinates all body functions, sends signals to and from all parts of the body  (ie. brain, spinal cord, and neurons)

Skeletal System: support the body, protect internal organs, store minerals  (ie. bones and joints)

kelp are large brown algae that live in cool, relatively shallow waters close to the shore. they grow in dense groupings much like a forest on land. these underwater towers of kelp provide food and shelter for thousands of fish, invertebrates, and marine mammal species.

e) all of the above

bradykinin is a physiologically and pharmacologically active peptide of the kinin group of proteins, consisting of nine amino acids.