Answer:
In conclusion the scientist should state that the data suggests that the gene causes cancer in mice.
Explanation:
A p-value is a measure of significance, it is the probability of the findings giving a false-positive of the hypothesis. A p-value less than or equal to 0.005 (5%) is considered significant. In conclusion the scientist should state that the data suggests that the gene causes cancer in mice.
to cause 50% longer lasting itches. Interested in
this product, he buys the itching powder and
compares it to his usual product. One test subject
(A) is sprinkled with the original itching powder,
and another test subject (B) was sprinkled with the
Experimental itching powder. Subject A reported
having itches for 30 minutes. Subject B reported to have itches for product.
45 minutes.
X
Identify the-
16. Control Group
17. Test Variable (Independent Variable)
18. Outcome Variable (Dependent
Variable)
19. Explain whether the data supports
the advertisements claims about its
Answer:
(16)Control Group: Subject A, who was sprinkled with the original itching powder, serves as the control group. This group represents the standard or usual product that Krusty uses and is used as a baseline for comparison.
(17)Test Variable (Independent Variable): The test variable or independent variable in this experiment is the experimental itching powder. Subject B was sprinkled with this experimental powder, which is the variable being tested.
(18)Outcome Variable (Dependent Variable): The outcome variable or dependent variable in this experiment is the duration of the itch. It is the factor that is measured or observed as a result of the manipulation of the independent variable. In this case, the duration of the itch is recorded for both Subject A and Subject B.
(19)Explanation of Data Supporting the Advertisement Claims: Based on the provided data, Subject B, who was sprinkled with the experimental itching powder, reported having itches for 45 minutes, while Subject A, who received the original itching powder, reported itches lasting for 30 minutes. The data suggests that the experimental itching powder caused longer-lasting itches compared to the original product. This supports the claim made in the advertisement about the experimental powder causing 50% longer lasting itches.
The control group is Subject A, the test variable is the experimental itching powder, and the data supports the advertisement claims.
The control group in this experiment is Subject A, who was sprinkled with the original itching powder. The test variable, or independent variable, is the experimental itching powder used on Subject B. The outcome variable, or dependent variable, is the duration of the itches reported by each subject.
The data suggests that the advertisement claims about the experimental itching powder causing 50% longer lasting itches are supported. Subject B, who was sprinkled with the experimental itching powder, reported having itches for 45 minutes compared to Subject A, who had itches for 30 minutes with the original itching powder.
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A is your anwser have a good day ;)
Answer: True
Explanation:
Forensic entomology is a sub-discipline of forensic science. It deals with the study of insects and their life cycles which are found in close proximity of the dead body. The type of insects grow over the body depends upon the stage of decomposition of the body. Also the life cycle varies depending upon the feeding nature of the immature stages of the developing insect on the dead body. More deformed body by the insects as evident by the colonization of eggs, and other immature stages as well as the mature insects can give indication of the time since death.
On the basis of the above description, the given statement is true .
C.differences in food preferences between two populations of birds
D.failure of sperm and egg production in hybrids between two populations of insects
Answer:
C.differences in food preferences between two populations of birds.
Explanation:
Reproductive isolation is a type of isolating mechanism which may further lead to speciation.
In this type of isolating mechanisms, the two types of organisms are isolated as they are unable to either mate or even if they mate, they fail to produce a viable progeny.
Reproductive isolation can occur due to :
1. Different mating strategies, time or place.
2. Inability to fertilize.
3.Production of a sterile or viable progeny.
Therefore, from the given option differences in food preferences is not a type of reproductive isolation as it does not follow any of the three listed mechanisms.
Reproductive isolation includes mechanisms that prevent different species from producing viable offspring. These can include behavioral, temporal, or biological factors. Differences in food preferences do not contribute to reproductive isolation.
In the context of evolution, reproductive isolation is a set of mechanisms, behaviours and physiological processes that prevent members of two different species that cross or mate from producing viable, fertile offspring. Examples include differences in behaviours like courtship songs, differences in breeding season timing, or incompatibility of gametes (like sperm and eggs) of two species.
Therefore, the choice C - differences in food preferences between two populations of birds is NOT an example of reproductive isolation. It's a ecological difference, not a barrier to mating or producing viable offspring.
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