Charles darwin is best know for developing his theory of evolution based on his observation of what characteristic?
a. the beaks of finches
b. the scales of snakes
c. the necks of giraffes
d. the trunks of elephants

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.

The is an estimate of the fewest number of organisms a population needs to avoid extinction. this measurement will most if the number of offspring each female in the population produces increases. if the population's this measurement will most likely increase. 1 population density, minimum viable population, carrying capacity 2 decrease, be unaffected, increase 3 death rate increase, dead rate decrease

Describe characteristics of a good respitory surface