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]
3 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]3 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 Lane contains the longest DNA fragment. <br> Lane 1<br> Lane2<br> Lane3<br> Lane4
Elena-2011 [213]

Answer:

the answer is :

Lane 3 contains the longest DNA fragment

6 0
2 years ago
Read 2 more answers
How can humans affect the traits of other living things? Give an example
lora16 [44]

Answer:

We can change how they act

Explanation:

Like when we trained dogs

6 0
3 years ago
Which object can a student move through a coil of copper wire to produce an electric current in the wire
gizmo_the_mogwai [7]
Magnet .................................
4 0
3 years ago
Male cats are either black (B) or orange (O). Females are black, orange, or calico, which has patches of black and
Sindrei [870]
The answer is orange because the way that he said the problem out.
4 0
2 years ago
How many biosynthetic families are know for amino acid biosynthesis.
lana [24]

Answer:

There are six of them, based on the common compound that they are synthesized

Explanation:

The family of L- glutamate come from the cetoglutarate compound from the Kreps cycle. The family of L-serine, come from 3 - phosphoglicerate compound from the glucolisis. The L - aspartate family, that come from oxaloacetate compound, from the Krebs cylce. The piruvate family that come from the piruvate, from the glucolisis. The aromatic aminoacids, that come from eritrose - 4 - phosphate, from the pentose cycle. And the L histidine family, that come from the ATP.

3 0
3 years ago
Other questions:
  • The cooled lava pools on the surface of a crater are called what?
    6·1 answer
  • the solution inside a plant cell is approximately a 1% saline solution. in a 25% nacl solution the cytoplasm of a plant cell wil
    7·2 answers
  • Why do we rarely see food chains with quinary (5th level) consumers?
    8·2 answers
  • What strengthens the cell membrane?
    12·1 answer
  • During the process of photosynthesis, plants use energy from the sun to transform carbon dioxide from the air into ?
    10·1 answer
  • Help me Please!!!!!!!!!!!!!!!!! I will mark correct answer as brainliest!
    9·1 answer
  • Please help! I will give you 20 points (brainiest if its right and helpful)
    13·2 answers
  • Robert Hooke was the first scientist to give the cell a name. Which statement is true about him?
    13·2 answers
  • I need help with that
    8·2 answers
  • Welke soort cellen zitten er veel in de oranje gekleurde delen?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!