Answer:
It contains 2 or 3 ppm of oxygen concentration.
Because of underdeveloped lungs the frog has to breathe through moist skin. Therefore for exchange of gases the skin is thin and moist
Answer:
B
Explanation:
soil being depleted to nitrogen due to high runoff
Answer:
Changes in temperature, pH, enzyme concentration, substrate concentration, and the presence of any inhibitors or activators can affect enzyme activity.
For example increasing substrate concentration increases the rate of reaction.
Explanation:
This is because more substrate molecules will be colliding with enzyme molecules, so more product will be formed.
