Surus th avallability of resources that can be invested the survival species. e

Question

Surus th avallability of resources that can be invested the survival species. e parental care reduces their early mortality, and makes them more to survive in competitive environments. B and C ) None of the above. 20. A laboratory population of Euglena gracilis is growing at 5% per hour. At the start of day 1, its density was 2 individuals per ml. Exactly four days later, what would you expect to be its density, assuming it keeps growing at the same rate? a. 192 b. 9.6 individuals/ml c. 243.02005 d. 243 euglena/ml e. None of the above

Explanation / Answer

considering the given data,

Euglena gracillis is growing at 5% per hour

considering 2 Euglena gracillis at the start of the day as 100 %, the 5% growth will be,

2/100*5

i.e 0.1/hour

now 4 days has 96 hours

so growth in 96 hours will be,

0.1*96

i.e 9.6 individual/mL (option b)

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