Cigarettes can contain over 4000 chemicals. With that 4000, there are 43 cancer causing chemicals and 400 other toxins such as nicotine, tar, carbon monoxide, and much more.
The benefit of the circuit of fetal blood course through the ductus arteriosus is the ductus arteriosus will permit more blood to go to the placenta and sidestep the lungs (since there is no blood required there yet). I hope the answer will help you.
The correct answer is C. The constituents in food that the body requires to function properly.
Explanation:
In health, nutrients are substances found in food that are essential for life and different functions in living organisms such as grow, reproduce, or develop. These substances are needed in different amounts by humans, which is defined by the recommended daily intake; for example, everyday individuals should eat between 45 to 75 grams of fat. Moreover, nutrients are classified into big groups that include fats, minerals, proteins, vitamins, and carbohydrates. According to this, nutrients are "the constituents in food that the body requires to function properly."
A. You relax some of your requirements
Hope this helps!
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I think the answer is A. it doesn't make sense
