There are no answer choices, but I know the mitochondria create energy for the cell.
The right answer is C. I think, a. and d. are obviously not serious. B is not true, because Ag and Au are in the same group in the periodic table and therefore have the same number of electrons in the last level. So, they form ions with the same charge. C is true beacause Ag and Au have different numbers in the periodic table and different amount of protons and neutrons in their nucleuses.
The answer for your question is b and c.
Hope this helps:)
Answer:
Diffusion is the movement of molecules from an area where the molecule is in high concentration to an area where the molecule is in lower concentration. ... Facilitated diffusion is the movement of a molecule from an area of high concentration to an area of lower concentration with the help of a protein channel or carrier.
Explanation:
follow god :)
Forest: A large area covered in trees.
Taiga: A snow forest.
Tundra: A flat area with no trees.
Desert: A large, dry area covered in sand
Savanna: A grassy plain in tropical and subtropical regions with very few trees.
Grassland: A large open area covered in grass.
Chaparral: A land with vegetation that consists of shrubs and bushes with thorns.
Mixed Forest: A forest with two or more kinds of different trees.
Hope this helps!
