Answer:
A food web consists of many food chains. A food chain only follows just one path as animals find food. eg: A hawk eats a snake, which has eaten a frog, which has eaten a grasshopper, which has eaten grass. A food web shows the many different paths plants and animals are connected.
Explanation:
Sea floor spreading occurs at divergent plate boundaries where the seafloor is being pulled apart by convection currents in the mantle. As the plate pull apart magma up wells and new crust is being formed. This process on the sea floor creates a habitat for exotic sea creatures such as tube worms. The food chain in this region of the planet starts with bacteria that metabolizes sulfur coming from hydro-thermal vents along the spreading ridge. <span />
Answer:
Vascular tissue includes xylem, phloem, parenchyma, and cambium cells.
Answer:
By moving three positively charged ions out of the cell for two positively charged ions entered.
Explanation:
The sodium-potassium pumps are the pumps located in the plasma membrane and are involved in the active transport of sodium-potassium ions. Binding of ATP and three sodium ions to the sodium-potassium pump is followed by hydrolysis of ATP and the use of released energy to bring about the conformational change in the shape of the pump.
This allows the bound three sodium ions to move out of the cell. As the sodium ions are released out of the cell, two potassium ions enter into the cell through the pump.
Since three positively charged sodium ions are expelled out of the cell for two positively charged potassium ions entering the cell, the net effect is making the interior of the cell negative with respect to its exterior.
they filter water and solutes from blood
