Answer:
1.Factors affecting include oxygen diffusion capacity of the lungs, cardiac output, oxygen transport capacity of the blood, capillary density of the muscles, and muscular mitochondria mass [3]. further depends on sex, age, genetics, body fat, medical conditions, and smoking [4–6].
2.When you exercise, heart rate increases to circulate more oxygen (via the blood) at a quicker pace. The more you exercise, the more efficient the heart becomes at this process, so you can work out harder and longer. Eventually, this lowers resting heart rate in fit people.
3.The best method to measure cardiorespiratory fitness is by measuring VO2Max, which is a calculation of how efficiently your body can transport and uitlize oxygen. To get an accurate measurement, expensive and extensive equipment is needed.
i hope this helps...
Answer:
Ecstasy drug
Explanation:
Ecstasy drug also known as MDMA or 3,4-Methyl enedioxy methamphetamine is a psychoactive drug.
The drug is taken to alleviate the level of energy and pleasure which are caused by increasing the activity of other neurotransmitters like dopamine and serotonin.
In the given question, since the Sarah is full of energy and behaves in an optimistically manner therefore she has most probably taken the ecstasy drug.
Thus, Ecstasy drug is the correct answer.
Answer:
The correct answer is E.
Explanation:
An unsaturated fatty acid has at least one double bond within the fatty acid chain.
They tend to have lower melting temperature than saturated fatty acids.
We can find them in oily fish, nuts and seeds, and vegetable oils.
They are liquid at room temperature.
These fats help reduce the risk of high blood cholesterol levels and therefore are healthier for humans.
The atmosphere is made out of 78% of nitrogen and 21% of oxygen with 1% of other gases (Carbon dioxide, Argon,and Helium)
Answer:
From fertilization and to the end of the second week.
Explanation:
The development of the fetus is divided into three periods, established by most embryologists: pre-embyonic period, which goes from fertilization to the second week of development, embryonic period, which goes from the third week to the eighth week, and the fetal period, which goes from from the third month until the end of pregnancy.
The pre-embyonic stage begins at fertilization and remains until gastrulation. By the end of the second week the embryo already has the neural tube formed, although it is still open at both ends.
