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alexira [117]
3 years ago
13

Pls help me , this is due in 2 hours

Biology
1 answer:
Blizzard [7]3 years ago
5 0

Answer:

A)

  1. Control: untouched dish
  2. Dependent variable: the different salt concentrations for preventing the growth of bacteria
  3. Independent variable: agar

B)

  1. Control: the group that is not exposed to any pollutant (5th group)
  2. Dependent variable: the effect of pollution on soybean plants
  3. Independent variable: the pollutant

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Explanation:

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3 years ago
Read 2 more answers
A disease breaks out among sheep in California. A scientist takes blood from the sheep and grows a previously unknown organism.
krek1111 [17]

Answer:

The correct answer is "Koch's postulates".

Explanation:

The missing options of this question are:

a) spontaneous generation

b) Koch's postulates

c) epidemiology

d) vaccination

The correct answer is option b) "Koch's postulates".

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Answer:

correct (all of them)

Explanation:

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