18. Water
19. Environmental impact
20. Limiting factor
21. Landfills
22. Biodiversity
Answer:
A - attaches plant cells to one another
Explanation:
The middle lamella is a layer which attaches plant cells together. During cytokinesis, it is the first formed layer which is deposited.
Answer: Option D.
Rate of oxygen consumption.
Explanation:
Volume of oxygen used or Vo2 Max is the maximum ability of a person to consume oxygen and the ability of the heart, lungs and blood to transport the oxygen to other tissues and utilize it to produce ATP or energy during intense exercise.