Certainly! Let's break down the problem step by step:
1. Number of Species of Extremophiles:
There are 4 different species of extremophiles listed:
- T. prosperus
- A. aceti
- A. brierleyi
- H. acidophilum
2. Number of Solvents:
There are 3 different solvents used:
- Hydrochloric acid (pH 1.3)
- Ascorbic acid (pH 4.2)
- Water (pH 7.0)
3. Total Number of Samples:
Each species of extremophile will be tested in each solvent. Hence, the total number of samples to be prepared and tested is given by multiplying the number of species by the number of solvents:
[tex]\[
\text{Total number of samples} = 4 \, (\text{species}) \times 3 \, (\text{solvents}) = 12 \, \text{samples}
\][/tex]
4. Time Required for Each Sample:
Each sample needs to be left undisturbed for 7 days.
5. Total Time Required:
Since each sample takes 7 days to process and there are 12 samples in total, the total number of days required to complete all the experiments is:
[tex]\[
\text{Total time} = 12 \, (\text{samples}) \times 7 \, (\text{days per sample}) = 84 \, \text{days}
\][/tex]
Therefore, the researcher will need 84 days to complete all of her experiments.
