Yaa that statement is true, complex chemical catalyst of living cells are enzymes
Answer:
D it is taken in from the air
Explanation:
Carbon dioxide is in the air and plants use it to make food.
The process in which organ systems work to maintain a stable internal environment is called homeostasis. ... Here are just three of the many ways that human organ systems help the body maintain homeostasis: Respiratory system: A high concentration of carbon dioxide in the blood triggers faster breathing
D. 1,200
This is because if it takes 1 and a half hours **1.5** to travel through city a and city b , and the plane goes 800km per hour and 400km is half of that it then the answer has to be d.
Answer:
true, the alternative would be postzygotic barriers.
Explanation:
