Assignment: the immune response exploration 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

Glycogen is an energy-storage molecule in humans. a hormone that is called insulin controls the storage of glycogen in the liver. insulin is made up of amino acids.

Read each description below and determine to which stage of sleep each pertains. then click and drag each box into the appropriate category below.

Which of the following observation darwin shape his concept of descent with modification? a) species diversity declines farther from the equator. b) fewer species live on islands than on the nearest continents. c) birds live on islands located farther from the mainland than the bird's maximum nonstop flight distance. d) south american temperate plants are more similar to the tropical plants of south america than to the temperate plants of europe. e) earthquakes reshape life by causing mass extinctions.