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Oksanka [162]
3 years ago
6

Please help whoever’s right will get brainliest

Biology
1 answer:
balandron [24]3 years ago
5 0
Law, theory, theory, Law
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Calculate the cardiac output if heart rate (HR) is 90 beats per minute, stroke volume (SV) is 110 ml/beat, end diastolic volume
Yakvenalex [24]

ANSWER: None of the above options are correct.

Cardiac Output(CO) = Stroke Volume(SV) × Heart Rate(HR)

Therefore where HR= 90bpm and SV= 110ml/min,

CO = 90 × 110 = 9900ml/min or 9.9L/min.

EXPLANATION:

CARDIAC OUTPUT is the volume of blood being pumped by the heart into the systemic circulation per minute.

Cardiac output is the product of two variables, stroke volume and heart rate.

STROKE VOLUME is the amount of blood pumped out by the left ventricle in each contraction.

HEART RATE is the count of the number of times the heart beats per minute.

6 0
3 years ago
Which of the following describes a properly controlled experiment?
finlep [7]
The answer is a. It’s the only one with a control group
6 0
3 years ago
Cerebrospinal fluid circulates within the ventricles of the brain and in the subarachnoid space. true or false
lozanna [386]

Answer:

True

Explanation:

CSF is produced by choroid plexus. It starts flowing from the lateral ventricles and move towards the fourth ventricle via the third ventricle. It then moves towards the subarachnoid space which is the region surrounding the brain and spinal cord. From the brain and spinal cord, CSF is absorbed through the blood vessels and passed into the bloodstream again. It then moves to the kidney and liver for filtration.  

Hence, give statement is true

3 0
3 years ago
Which term refers to the heart's ability to pump out blood every minute?
Sedbober [7]
Cardiac output, specifically by a left or right ventricle in one minute.
5 0
3 years ago
A zygote (i.e., a fertilized egg) undergoes development to grow. What mechanism is used to generate more cells?
pentagon [3]

Answer: Mitosis

Explanation:

Since meiosis helps only in the production of gametes, mitosis helps the somatic cells in the already fertilized egg (zygote) to do the following:

- multiply their number, thus aiding growth

- form new cells like red blood cells to transport oxygen, white blood cells to fight infection, liver cells etc

Thus, for growth mitosis is the mechanism used to generate more cells

6 0
3 years ago
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