Answer:
I believe the answer is Lipid not 100% sure though, plz don't sue me if I'm wrong✪ ω ✪.
The majority of mammals (including humans) utilize a double circulatory system. ... Double circulatory systems are important because they ensure that we are giving our tissues and muscles blood full of oxygen, instead of a mixture of oxygenated and deoxygenated blood.
Answer:
I think it is C. Carbon source
Explanation:
Hope this helps
Answer: A
Explanation: the seasons are caused by the tilt of the earth's rotational axis.
She is a medicinal chemist, hence one of her main assignments would be to produce drugs for certain diseases. This could involve several subtasks like identifying chemical substances, analyze which substances can dissolve another and finding catalysts or enzymes for certain reactions and also simpler procedures like annihilating a base with an acid.