A compound contains atoms of different elements chemically combined together in a fixed ratio. An element is a pure chemical substance made of same type of atom. Hope this helps!
Answer:
B. It captures the substances filtered out of the blood.
Explanation:
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The cardiac output may be calculated as the product of heart rate and stroke volume. Thus, the cardiac output in this situation is 9.9L/min.
<h3>What is Stroke volume?</h3>
Stroke volume may be characterized as the volume of blood output with each beat of the heart which is 110 ml/beat in this question.
Cardiac output = Heart rate × Stroke volume.
90 × 110ml/min = 9,900ml/min = 9.9L/min.
Therefore, the cardiac output in this situation is 9.9L/min.
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Answer:- 25 grams.
Solution:- We are asked to make 500 mL of 5% glucose solution. The percentage is the mass by volume percentage. 5% glucose solution means 5 grams of glucose present in 100 mL solution. From this given information, we can easily calculate the mass of glucose required to make 500 mL solution.
The calculations are shown as:
500mL*5g/100mL
= 25g
So, 25 grams of glucose are required to make 500 mL of 5% solution.
Answer: The trophic levels of a food chain are the number of steps from the beginning of the chain.
Explanation:
A food web/chain starts with trophic level 1 (primary producers), trophic level 2 (herbivores), trophic level 3 (carnivores) and so on.