The answer is C. A variety of antibiotics
The population must be infinitely large!
Hope this helps!
Human reproductive cloning should not now be practiced. It is dangerous and likely to fail.
First answer is , as the work of ventricle is to push blood to he whole body , so it has to be strong or it can not pump blood to head to the toe !
as in frog (an amphibian ) it has only three chambers as two artia and one ventricle, so the oxygenated blood from left artia and deoxygenated blood from right , combines and thus partial oxygenated blood is circulated !
