What is an ecosystem with an evenness of species numbers considered to be?

a. less biodiverse

b. equally biodiverse

c. more biodiverse

d. destined for extinction

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When coal has reached it hardest, darkest form, it is called select one: 0 a. sub-bituminous b. lignite c. bituminous d. antrhacite next page

Ihave no idea how to solve these. plus there's another question that is 2) a 10 kilogram meteorite is collected in space and brought back to earth. it is composed of 1.25 kg of uranium-238 and 8.75 kg of lead-206. how many u-238 half lives have passed? what is the approximate age of the meteorite?

Compare and contrast your sells take in oxygen, water, and food. what is one waste product that leaves your cells?