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Elza [17]
3 years ago
7

Which structure prevents food and liquids from being inhaled when a person swallows

Biology
2 answers:
Shkiper50 [21]3 years ago
5 0

Answer:

epiglottis

Explanation:

slava [35]3 years ago
3 0

Answer:

lungs

Explanation:

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Which of the following describes how background research helps in the
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D. It provides information about the subject of an experiment.

Background research is research prior to conducting an experiment.

Explanation:

Background research is important so as to fully understand the variables that are being controlled and tested in an experiment, and their relationships that will give insights into how to design the experiment. The background research is also important in identifying the research problem setting up of a good hypothesis.Background research also reduces the rate of failure of an experiment due to proper preparation.

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If a cell culture contains 400 cells/ml at time = 0 and it has a generation time of 30 minutes, how many cells (cells/ml) will b
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Answer:

The answer to your question is: after two hours there will be 6400 cell/ ml

Explanation:

Data

Bacteria t = 0; 400 cells/ml

generation time = 30 minutes

# cells after two hours = ?

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