**Answer:**

Lipid forms structures in cells and stores energy

**Explanation:**

Answer:it’s abc it’s just science you know

Explanation:

<u>**Ans: 650 J = 155 calories**</u>

<u>**Given:**</u>

Energy in joules = 650 J

<u>**To determine:**</u>

The energy in calories

<u>**Explanation:**</u>

1 joule = 0.2388 calories

Therefore, 650 joules = 0.2388 calories * 650 J/1 J = 155 calories

The amount of sample that is left after a certain period of time, given the half-life, h, can be calculated through the equation.

A(t) = A(o) (1/2)^(t/d)

where t is the certain period of time. Substituting the known values,

A(t) = (20 mg)(1/2)^(85.80/14.30)

Solving,

A(t) = 0.3125 mg

Hence, the answer is 0.3125 mg.

Answer:A

Explanation:

Your muscular system is at work