1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
e-lub [12.9K]
2 years ago
15

A scientist wishes to test a new antibiotic’s ability to treat stubborn bacterial infections. He tests his hypothesis that the a

ntibiotic works better than existing treatments by giving bacterial infections to mice and treating them with the antibiotic. He then determines how many of the mice recover from their infections. What is missing from his experimental design?
a. He is missing a control group of mice that did not receive the new antibiotic.
b. Nothing is missing—he has done everything he needs to do for this to be a successful experiment.
c. There are no variables in the experiment
d. He is missing an experimental group of mice that received a half dose of the new antibiotic.
Biology
1 answer:
marin [14]2 years ago
8 0

Answer:

a. He is missing a control group of mice that did not receive the new antibiotic.

Explanation:

In any experiment especially experiments testing effectiveness of a drug, there should be a control group.

The importance of a control group is to minimize the effects of other variables other than the independent variable hence increasing reliability of the results.

in this case, a group of mice that did not receive the new antibiotic would have served as the control group.

You might be interested in
Why did darwin stop at the island?
ahrayia [7]
Is there anything else that goes with this question? I’m not sure how to answer.
7 0
3 years ago
How many years does a snake live and how many times does it change its skin without pictures please and without links​
irina [24]

Answer:

9 years

Explanation:

Boa constrictor: 30 years

Boa constrictors are native to North, Central, and South America, mainly dwelling in rainforests. The lifespan for the large, heavy-bodied snake averages about 20 years in the wild, but living in captivity can increase that by 10 to 15 years.

8 0
2 years ago
Read 2 more answers
Which bone is identified in the picture below
kompoz [17]

Answer:

?

Explanation:

where is the picture?

6 0
3 years ago
What term is used to describe how well an organism functions in its
IRINA_888 [86]

the term used to describe how well an organism functions in its environment is variation

4 0
1 year ago
Read 2 more answers
The info in DNA and mRNA is used to make what kind of molecule?
Tasya [4]
The information or message from the DNA out of the nucleus into the cytoplasm, translation the second step from a gene to a protein that takes place in a cytoplasm
5 0
2 years ago
Other questions:
  • Which of these bones is classified as a flat bone?
    5·1 answer
  • DNA transcription and translation worksheet
    10·1 answer
  • Discuss how overpopulation or introduced species have impacted the food web.
    15·2 answers
  • Why do cells have to travel through the cell cyle
    8·1 answer
  • Amino acids are coded for by triplet bases in RNA called _____
    5·2 answers
  • Determine the genotypes of the parents if the father is blood type A the mother is blood type B the daughter is blood type O one
    13·1 answer
  • When looking through the spectrascope, the sunlight looks like ?
    12·1 answer
  • What is significant about the homeotic genes
    7·1 answer
  • Which biome is likely to have the most species within a hectare of land?
    7·1 answer
  • An infant has a strange rash. Some of the rash is swabbed and examined under the microscope. A mass of threadlike structures is
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!