Chloroplasts;
These contain grana, the site of the light-dependent reaction of photosynthesis, and stroma, a fluid substance that is the equivalent of cytoplasm in cells, which is the site of the light-independent reaction of photosynthesis. Grana are structures made of stacked thylakoid membranes, necessary for chemiosmosis, connected to one another by lamellae.
A producer is a plant. So it has to be
A. algae
Answer:
D) Bits being blown off a rock by heavy winds
Explanation:
All the other answer choices are examples of chemical weathering.
Rusting is chemical weathering.
Compounds that break down rocks is chemical weathering.
Acid rain is chemical weathering.
Wind breaking rocks, however, is physical weathering.
Answer:
C) Na+ ions moving out of the cell
Explanation:
- Movement of Na+ ions out of the cell requires hydrolysis of ATP, a process called active transport.
- Active transport involves movement of materials against a concentration gradient using energy from the hydrolysis of ATP.
- Active transport system uses energy in the form of ATP to move substances such as ions into the cell or out of the cell.
So 4000/750=5.3repeating so 6 because he has to move allll the gravel
