It's an animal cell because it doesn't have a cell wall or chloroplasts. It's also not rectanglular shaped. :)
Coastal mountains force cool, moist air from oceans to rise as it moves toward land. Clouds form, and precipitation falls on the <u>windward</u> side of the mountain. On the <u>leeward</u> side of the mountain, very little precipitation falls.
The natural flow of rivers can be affected by several factors, such as building dams to provide drinking water, pumping of groundwater, climate change, and building of lands that change how natural water runs into surfaces and into rivers. All of these also disrupt the balance of ecosystem in the area.
Answer:
A. passive transport by diffusion
Explanation:
Diffusion and osmosis are both types of passive transport. They do not require energy. Diffusion is the general term for the process. Osmosis is the diffusion of water molecules.
Many small, uncharged molecules can cross the cell membrane by diffusion. Oxygen and carbon dioxide are examples of two small molecules that pass the cell membrane by passive transport.
Larger or charged molecules require energy to cross the cell membrane. This is achieved by active transport.
