Answer:
There are two possibilities: The offspring can either be HH or Hh; therefore, there is a 50% chance of the offspring being one of the two above. This means that there is a 50% chance off the offspring being tall or short.
QUICK ANSWER
A combination of sand, salt and water is an example of a heterogeneous mixture. A heterogeneous mixture is a type of combination where the constituents of the mixture are not uniform, and there are two or more distinctive phases of separation.
I’m not sure but it’s definitely a stimulus and I think if it wants specific terms it is a Conditioned Stimulus
Answer:
Variola virus.
Explanation:
Smallpox is caused by a virus named as Variola virus.
Answer:
The correct answer is:
Includes at least two groups, one of which does not receive the experimental treatment. (B)
Explanation:
A controlled experiment is made up of at least two groups of participants (subjects). One group (the test group) receives the experimental treatment, which can be an intervention or a new drug to be tested etc, and the effect of the treatment on the subjects is measured, while the second group of similar subjects also known as the control group acts as a baseline and do not receive the treatment or intervention. They act as a baseline to ensure that the change observed in the treatment group was brought about as a result of the treatment.
<em>Note that repeating the experiment several times does not ensure accuracy of the result, rather it ensures reliability of the results hence option D is not correct</em>