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
Which organ of the body produces the fluid know as bile?
lord [1]

Answer:

A-Liver

Explanation:

8 0
3 years ago
Read 2 more answers
If cells are constantly splitting, why aren't they getting smaller too? Half of a muffin is not as big as a whole muffin. When y
aalyn [17]
There Is a phase in mitosis called G0, which occurs before the other stages. jn this stage, cells grow in order to become big enough go divide, meaning cells take the time to grow in order to divide at the same sizs.
6 0
3 years ago
Read 2 more answers
Linnaeus lived hundreds of years before scientists discovered DNA, genes, and the roles of DNA and genes in determining the trai
erma4kov [3.2K]
D. The discoveries confirmed many but not all of the classifications that were based on observable traits, and scientists revised classifications when necessary.
6 0
3 years ago
What are praying mantis cannibals
anygoal [31]

Answer:

Praying mantis cannibalism explained.  When a female praying mantis bites the head off her sexual partner, it is probably not out of anger. ... The scientists tracked the flow of radioactive proteins through the bodies of the cannibalistic females, and through their eggs.

8 0
3 years ago
Which is a cofactor? (1 point)<br> O CO2<br> O ATP<br> O H20<br> O NAD
GarryVolchara [31]

Answer:

O H20

Explanation:

because I get a 100 on the text

6 0
2 years ago
Read 2 more answers
Other questions:
  • A scientist discovers a new organism that is related to clownfish. What can the scientist discover by using molecular clocks? th
    11·2 answers
  • A client reports chest pain and heavy breathing when exercising or when stressed. which is a priority nursing intervention for t
    13·1 answer
  • How did each change to the land affect the fish in the pond?
    5·1 answer
  • Describe the<br>Inter relation<br>bla<br>living and living thing in a tabular form​
    15·1 answer
  • What is the repeating subunit of starch?
    10·1 answer
  • Vitamins taken in megadoses can be harmful because they
    10·2 answers
  • This device can be used to remove most biological agents that enter a house.
    9·1 answer
  • IF 9 PINTS OF ICE CREAM COST $54, HOW MUCH DOES 2 PINTS OF ICE CREAM COST?
    13·1 answer
  • How does the mitochondria lysosomes and golgi apparatus work together
    8·1 answer
  • Why do geologists think Earth's core contains mostly iron?
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!