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denpristay [2]
3 years ago
13

A student wants to test the effect of different amounts of caffeine on the heart rate of dogs. Describe the experimental groups

in this experiment. What is the dependent variable? type of dogs amount of caffeine the heart rate number of dogs
Biology
1 answer:
RSB [31]3 years ago
3 0

Answer:

Experimental groups: type of dogs

Dependent variable: hearth rate

Independent variable: the amount of caffeine  

Explanation:

The dependent variable is the variable being measured or tested in a given study, while the independent variable isn't changed by the other variables. In this case, the heart rate is dependent on the amount of caffeine, which is then the independent variable. The experimental groups are the groups exposed to the independent variable.

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Answer:

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Explanation:

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Dr. Han is studying which brain structure is associated with aggressive behavior among rats. Which part of the brain is she like
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Answer:

The correct answer is - The amygdala

Explanation:

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Artyom0805 [142]

Answer:

The right matching of the scenario in the question are as follows:

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3.  HYPOTHESIS: Josh decided jalapenos would be a good ingredient to add spice to the recipe.

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5. RESULTS: Julie thought the enchiladas were delicious and exactly the right level of spice.  

6. CONCLUSION: Josh determined that since Julie liked the meal, adding jalapenos to the recipe was a good way to make it spicy.

Explanation:

Scientific method is an organized steps of procedures that scientists used to study and gather knowledge about different phenomenons. The systematic steps of scientific method start with observation, the observed phenomenon usually make a scientist to ask questions that he doesn't have an answer to. This will prompt him to formulate an hypothesis and set up an experiment to see if his hypothesis is true or not. The result he obtains from the experiment will determine the type of conclusion he will make about his earlier observation. By following these steps, scientists usually obtain useful  information that bring progress and advancement to humanity.  

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2 years ago
11. Write the complementary sequence to following DNA strand:
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Answer: T T A A G C G G C CA TAA T C T G CTT

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2 years ago
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