Lasts are used for photosynthesis .
They have a double membrane around them.
The space inside is called the stroma. The space may contain starch grains and lipid bodies.
In the stroma are structures called thylakoids.
The thylakoids are stacked to form structures called grana.
The grana contain the pigment chlorophyll along with some secondary pigments.
Answer:
He/She can have brainliest!
Explanation:
The answer is d. chromosomes help an organism produce usable energy
Well a nucleus of an atom has a positive charge
2. is the correct answer
Just divid the distance by time