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ella [17]
3 years ago
8

26. Which of the following best describes how organ systems interact, serving the needs of cells for

Biology
1 answer:
GuDViN [60]3 years ago
3 0

Answer:

D

Explanation:

Blood is pumped by cardiovascular, respiratory system breathing process takes in oxygen and breaths out carbon dioxide when the digestive system food process gives the body energy for this processes to be successful

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What happens to the CO2 released by the body?
Sladkaya [172]

Answer:

When CO2 is breathed into the lungs, it dissolves in the water there, diffuses across the alveolar-capillary membrane, and enters the bloodstream. As it combines with water, it forms carbonic acid, making the blood acidic. So CO2 in the bloodstream lowers the blood pH.

8 0
3 years ago
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What is the volume of the rectangular prism?
Sergeu [11.5K]

Answer:

270cm³

Explanation:

Volume of the rectangular prism: length * width * height.

In this case: 6cm * 9cm * 5cm

3 0
3 years ago
identify an independent variable in the experiment graphed in figure 1. based on the data in figure 1, identify a control that s
choli [55]

Answer:

Explanation:

This question is incomplete because of the absence of the graph. However, the independent variable of an experiment is the variable that is not affected by any other variable during the course of the experiment but is however intentionally or unintentionally predetermined by the researcher conducting the experiment. For example, in an experiment to determine the effect of age on blood pressure; age is the independent variable because the age class/groups of the individuals to be used can be determined by the researcher also the age cannot be affected by the pressure (the age of a person cannot change because of an increase/decrease in blood pressure).

Also, the control of an experiment is the variable/data in which other data in the same experiment are compared to. For example, in an experiment to determine the effect of a substance (such as sepin-1) on the growth of cancer cells (using a culture medium), the control can be the culture medium that was not given any substance or the culture medium that was given a pure substance of no effect like water. This means, in this control culture medium, the cancer cells will continue to grow normally while that growth will be compared with what is seen in the culture medium treated with sepin-1.

7 0
3 years ago
A criminalist uses a fluorescent chemical called luminol and an ultraviolet light source to see a large bloodstain on a carpet.
bija089 [108]
C is the correct answer to this question
6 0
3 years ago
You are served dessert at a restaurant. You want to know what % of the calories in the dessert are from fat. The menu states tha
jasenka [17]

Answer:

39.82 %

Explanation:

Proteins and carbohydrates provide 4 calories per gram. On the other hand, fats provide 9 calories.

We can first calculate the calories of protein + carbohydrates:

       (30g + 4g) x 4 = 136 calories

And we must calculate the calories provided by fat:

        10g x 9 = 90 calories

Now to get the percentage we must see how many calories the dessert has in total:

          136 + 90 = 226 cal

This represents 100% of calories. And now we need to find out how much 90 calories are from the total.

           226 cal -----> 100%

             90 cal ------> X

       (90 x 100) / 226 = 39.82 %

4 0
3 years ago
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