What do scientists estimate is the approximate age of earth ?
a. 660 million years
b....
Biology, 17.09.2019 07:20 clietmaster112
What do scientists estimate is the approximate age of earth ?
a. 660 million years
b. 3.5 billion years
c. 4.6 billion years
d. 12.2 billion years
Answers: 2
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Explain the importance of producers, primary consumers, secondary consumers and decomposers in an ecosystem.
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The hematodinium parasite becomes less of a problem for the blue crab when the crab is very young. fishing is thriving in the region. the crab moves to less salty water. a significant percentage of the population is impacted.
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What factors contribute to the effect an environmental toxin has on the human body?
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