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Tpy6a [65]
3 years ago
10

Ned is designing an experiment to test which hand sanitizer kills the most E. coli bacteria. In order for Ned's results to be va

lid, what must he do?
Biology
2 answers:
Kay [80]3 years ago
7 0
Have a control. You have to have something to compare your experimental results or else your results could be random chance. 

kondaur [170]3 years ago
7 0
Test the hand sanitizers on bacterial colonies that are kept in the exact same environmental conditions, such as temperature and light level
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What is the first codon in the mRNA that codes for fMet.
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4 0
3 years ago
Which of the following has the most potential of experiencing background extinction based on the natural disruption described?
Neko [114]

The option that has the most potential of experiencing background extinction based on the natural disruption is : ( C ) A species that will not grow during a specific season every year

<h3>What is Background extinction </h3>

Background extinction is the gradual extinction of species due certian environmental factors such as change in weather conditions, disease, competitive disadvantage and habitat loss.

A population that will not grow during a specific season every year will experiences a gradual extinction process while other options will experience a fast and sudden extinction process.

Hence we can conclude that the most potential of experiencing background extinction based on the natural disruption is :  A species that will not grow during a specific season every year.

Learn more about background extinction : brainly.com/question/11872946

6 0
2 years ago
What steps are usually included in the scientific method
MrMuchimi

Answer:

1. make an observation 2. ask a question based on your observation. 3. form a hypothesis/ make a prediction 4. do a test or experimentation 5. analyze data 6. form a conclusion

Explanation:

7 0
3 years ago
Giving brainlist need help ASAP!!!!
Delicious77 [7]

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Smog has a negative effect on many biotic factors.

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What are the unique characteristics of the water molecule ?
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