I believe that a cell must use active transport to move molecules across the membrane against a gradient. Your answer should be D.
Answer:
se realizan en las membranas internas
Explanation:
La fase luminosa o clara se realiza en la cadena transportadora del cloroplasto en pequeñas unidades llamados fotosístemas que están en los tilacoides(membranas internas)
Hello, the answer to your question is D.
I hope this helps!
Answer: The first law of thermodynamics establishes that energy cannot be created neither destroyed.
Explanation:
So the grasshopers eat the grass to gain energy and then the birds eat the grasshopers to gain energy as well so by doing that they are just passing the energy to one another to power muscles and other body parts which follows the laws of thermodynamics that energy is not created but transfered from one system to another.
Hope this helps ! -Enrique, Biology Major :)