Answer:
C. experimental
Explanation:
Experimental variables are the variables that are changed during the experiments to observe the effects of these changes. An experiment usually has one or more experimental variables. An experimental variable that is changed to know its impact on some other variable is called the independent variable.
In the given experiment, goldfishes were exposed to various temperature conditions to observe the effect of temperature on respiration. Therefore, both temperature and respiration rate are the experimental variables here.
Answer:
The offspring carry two DNA strands one from father and one from mother. So theses old DNA carry trait with them as well.
Answer: A) it doesn’t represent the way that some hypotheses might be rejected.
Explanation: Just helped someone answer this question.
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Answer:
The factors involved in earthquake formation are: plates moving, rocks breaking and movement below the surface.
