Explanation:
They are opposites because they are the same chemical reaction but reversed. Cellular respiration takes glucose (from nutrient/food) and oxygen (from atmosphere) in order to make CO2 (think about exhaling) and H20 (water).
Coal Mining is considered the most dangerous job in the United States. Mining also possibly releases harmful chemicals in the environment.
I'm no Eisten, but from what I remember when I was in middle school. The Earth's rotation axis affect Earth's weather for seasons. The seasons change (weather) depending on the amount of sunlight as earth revolves around the sun.
Answer:
The correct answer is option B. pheromones.
Explanation:
Pheromones are chemical substances that are released and produced by a different type of animals, into the environment, for marking their territory or affecting behaving of its species.
Wolves communicate by the chemical messages using their sense of smell. Such chemical messages are called pheromones, between different members of the same species.
Thus, the correct answer is option B. pheromones.
