I think the right answer is d!
Answer:
Ecosystem engineers are species that modify their environment in a significant manner, creating new habitats or modifying existing ones to suit their needs.
Both use Oxygen and produce Carbon Dioxide
Answer:
The enzyme function best at a specific temperature.
Explanation:
Enzyme activity is affected by temperature. Each enzyme has a specific temperature
range in which it works most effectively. Most biological enzymes present in the human body have an ideal temperature range of around 98.6 degrees.