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
VLD [36.1K]
4 years ago
14

In an experimental design, a(n) ____________ group is not exposed to the treatment, and this allows a researcher to identify any

effects of the experiment that are not caused directly by the treatment.
Biology
1 answer:
PolarNik [594]4 years ago
3 0

Answer: normal

Explanation:

In experimental design, especially those involving drug treatment, specimens (e.g mice, rabbit etc) are drafted into several groups to study their degree of response to the particular drug being investigated.

Of all, a group of specimens named NORMAL is usually NOT exposed to treatment in order to

- allow objective comparison between scientific parameters before and after experiments

You might be interested in
Which list identifies the order of events that formed a volcanic crater?
polet [3.4K]
The correct answer is C)
3 0
3 years ago
3. When water is broken, what other product is formed?
Vera_Pavlovna [14]

if we electrolyzed water then oxygen and hydrogen are products

4 0
3 years ago
Read 2 more answers
Why did gregor mendel use peas in his experiments?peas grow very slowly.pea reproduction cannot be controlled.peas normally prod
Dmitriy789 [7]

Answer:

The correct answer is peas have characteristics that have two forms.

Gregor Mendel used pea plant  <em>Pisum sativum </em>as a model plant for his experiments. There are many applications behind his choice, one of which is observable characteristics with contrasting traits.

Pea plant has many observable characteristics which exist in two forms for example:

  • Plant size (tall or dwarf)
  • Pea color (green or yellow)
  • Pod shape (yellow or green)
  • Flower color (purple or white)
  • Pea shape (round or wrinkled)

Other benefits were like: short life cycle, it produces a good number of offspring in a cross, easy to breed or cross-pollinate, hybrids were liable, bisexual flowers which makes it easy to produce true-breeding etc.

5 0
3 years ago
Read 2 more answers
A person that is heterozygous type AB (AB) marries a person that is heterozygous type A (AO). What is the probability that their
BigorU [14]

Answer:

The correct option is <em>B. 25 %</em>

Explanation:

 A heterozygous type can be described as the type in which both the alleles of a gene are different. If both the alleles of a gene are similar in an organism, then the person is said to be homozygous for the trait.

In the above question, two heterozygous parents are to be cross- bred to check the probability of them producing homozygous alleles (AA).

A punnet square made will show the following results:

       A     O

A     AA    AO

B    BA     BO

Hence, there will be 25% chance that the offspring produced could be homozygous AA.

6 0
3 years ago
Which does not likely occur in the surrounding area during the breakdown of ATP? A. Released energy activates an enzyme B. An en
Fynjy0 [20]
<span> During the breakdown of ATP, ADP moving back to ATP synthase will most likely not happen.</span>
7 0
4 years ago
Other questions:
  • Here is an idea that will recur throughout your study of the function of molecules: change the structure, change the function. y
    9·1 answer
  • The process of respiration is essential in the oxygen/carbon dioxide cycle. Respiration removes ______ from the atmosphere and p
    11·2 answers
  • The number of muscle fibers served by a single axon varies considerably. in muscles that move the fingers, the ratio is small, w
    8·1 answer
  • What is soil profile?
    7·1 answer
  • Which functional group determines two groups of sugars?
    15·1 answer
  • How do ocean currents influence the climate of a place?
    15·2 answers
  • What is likely to happen to the cells of a marine plant if placed i a freshwater environment
    5·1 answer
  • Be the man he always wanted you to be
    13·1 answer
  • What is the likely cause for the Cheetah losing genetic diversity?
    11·2 answers
  • what are the mechanisms that halophiles typically employ to grow in habitats with high concentrations of salt
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!