I need help solving this for my homework please and thank you

What is the function of nucleic acids

Many people try to eliminate fat from their diets. which is one reason it is necessary for humans to eat fat? a. eating fat is the fastest way to get energy. b. fat eliminates triglycerides from the body. c. saturated fats clear out the blood vessels. d. fat nerves transmit signals. , this is for apex in summer school.

Is there any species that went extinct in recent years due to natural causes (not caused by human interaction). if so, what caused it?