Answer: D. A growth factor (a protein that controls cell division & growth).
Answer:
Energy transfer in ecosystem follows the 10 % law.
Explanation:
- In an ecosystem model, the transfer of energy starts with the base level that is from the grass level to the grasshopper that is the primary consumer. This is a plant to animal.
- The energy transferred from grasshopper to snake is an example of the animal to animal. The dead and decaying animal may transfer this energy back to the plant through the soil.
The nucleus is what makes the cell do all of it's activities.
A decrease in tenperature could result in birds relying more on feeders to get food.
Acidity is determined using a pH indicator
