Answer:
answer a i took it on a quiz
Explanation:
When cells communicate by the signaling process, one cell produces a signaling molecule that must be received by the signal receptor on or in the responding cell. Signaling molecules are often called ligands, a general term for molecules that bind specifically to other molecules (such as receptors).
Answer:
The initial cost of solar panels is very high compared to using fossil fuels.
Explanation:
Tropical rainforest, savannah, and dessert biomes are all classified as climax community should be some form of seasonal forest or woodland
Flowers and fruits are used by angiosperms to reproduce, while gymnosperms have unenclosed or "Naked" seeds on the surface of leaves or as cones
