Why is cell important for living beings

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.

Why did adult crab numbers decline in he ecosystem, even though sea stars were still available?

What class of levers is shown in this image?