biology!!!?

A certain is capable of reproducing by binary once every half hour. Suppose you placed a single in an enviroment where it would reproduce at this rate. How many would be present after 3 hours? After 12 hours? What factor might limit how long this rate of reproduction could continue?

I don’t get this question!! Can someone help me!!! ( Thanks)

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3 Responses to “biology!!!?”

  • Mary Alice Cullen:

    It’s mostly a math question in its essence. These throw me off when they show up in Algebra because they’re science, and vise versa…. An exponential expression thingy. I think. But here’s how to do them. Or, actually, this specific one, but it’s the same principle:

    after 3 hours there would be 64 bacteria. it doubles every half hour. 3 hours = 6 1/2 hours. so 2^6 = 64.
    after 12 hours there would be 16,777,216 bacteria. 12 hours = 24 1/2 hours. 2^24 = 16,777,216.

    Limiting factors could include inhospitable temperatures, insufficient food or space in which to grow.

  • milton b:

    Every half hour the population of bacteria doubles, the math is simple you can do it. The two big limiting factory on bacterial growth are always food and space.

  • Josue:

    3 hours = 64 bacteria
    12 hours = 16777216 bacteria
    -temperature

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