Classify the following as either a specific or a nonspecific defense of the body's immune system.

• skin
• macrophages
• bacteria • mucous
• fever
• b cells • t cells
• antibodies

specific nonspecific

Specific defence would be types of defence directed to a specific antigen. Nonspecific defence would be general types of defence; directed to any type of antigens.

Specific:

Nonspecific:

Hope it helped,

BiologiaMagister

4.) metal

"-the movement of carbon from the nonliving environment into living things and back to the environment

-carbon is the essential component of proteins, fats, and carbohydrates (which make up all organisms)

-carbon exists in air, water, and living organisms

-producers convert carbon dioxide in the atmosphere into carbohydrates during photosynthesis

-bacteria in the atmosphere cycles through the system in filtration units

-in cellular respiration, carbon is released back into the atmosphere as carbon dioxide

-some carbon is stored in limestone (forming one of the largest "carbon sinks" on earth)

-largest carbon reservoir on earth= limestone

-carbon stored in the bodies of organisms as fat, oils, or other molecules may be released into the soil or air when the organism dies

-this may form deposits of coal, oil, or natural gas (fossil fuels, which increased the atmospheric carbon dioxide)

-fossil fuels store carbon left over from bodies of organisms that died millions of years ago

-they are located in the surface of earth, deep within the earth and beneath the ocean floor."    

the titanic would be the correct answer