Animal cell.

which organelle is responsible for producing the energy for cellular processes?

What was the land like over 500 million years ago? what was under the sea?

What is the correct term for an area of rotating currents in an ocean? when ocean currents combine, they create an area of rotating currents called an

What are two ways that harvesting algae from the ocean may benefit human society? how might the harvest of algae negatively impact the ocean communities where that algae grows? how could this be prevented?