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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Answer:
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b. Changing one amino acid in the protein hemoglobin causes sickle-cell anemia.
c. Proteins are sensitive to changes in pH.
d. The shape and chemistry of an enzyme's active site determine its function.
A.) High temperatures cause proteins to denature.
The sequence of amino acids, or the primary structure, in a protein determines its shape and function. Changing one amino acid in hemoglobin results in sickle-cell anemia, showing that small alterations in the primary structure can have significant impacts on protein function.
The primary structure of a protein is important in determining its function. It refers to the sequence of amino acids that make up the protein chain. The option that illustrates this relationship is b. Changing one amino acid in the protein hemoglobin causes sickle-cell anemia.
This statement is valid because the amino acid sequence (primary structure) determines the shape the protein takes. In the case of hemoglobin, a single amino acid substitution causes a significant enough alteration in shape to result in the harmful condition of sickle-cell anemia, thus clearly showing the link between primary structure and protein function.
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humans and fish evolved from insects
B.
different species synthesize the same proteins
C.
insects, fish, and humans express the same genes
D.
different species share components of the genetic code
The codons that code for alanine in a potato beetle are the same as those that code for alanine in mackerel and humans. This evidence best supports the idea that -(D) different species share components of the genetic code
Explanation:
Evaluating the other options given
A.humans and fish evolved from insects-This option is incorrect as human and fish did not have a common ancestors.
B.different species synthesize the same proteins:No this statement also is not the correct option
C.insects, fish, and humans express the same genes-The expressed genes cannot be same for different species
Hence the correct answer is
The codons that code for alanine in a potato beetle are the same as those that code for alanine in mackerel and humans. This evidence best supports the idea that -(D) different species share components of the genetic code(As the genetic code is said to be universal
It helps the mole eliminate excess heat.
It helps the mole find food.
It helps the mole dig out its burrow.
2. Which of the following do all animals not need to do in order to survive
capture prey.
obtain oxygen.
eliminate waste
avoid predators.
3. How would having a prehensile tail help a treedwelling chameleon?
Its tail would help it grasp branches.
Its tail would help it capture food.
Its tail would help it balance in the treetops.
Its tail would help it maintain homeostasis.
4. Which of the following is an animal waste product?
oxygen
carbon dioxide
water
energy
5. Which of the following must an animal do to survive?
Reproduce.
Breathe air.
Maintain homeostasis.
Dig a burrow