Answer:
an investigation on how copper affects aquatic life in the reservoir
Explanation:
It was observed that there were two time periods represented in the sediment by larger levels of copper than is recommended in sediment quality guidelines at the San Carlos Reservoir in Arizona
The next things that will be on their mind is to investigate on how copper affects aquatic life in the reservoir
Answer:
a helix!
Explanation:
you can also call it a double helix
Answer:
I'm just gonna say it. With ash clouds, there's no sun. Without sun, no plants, without plants, no plant eaters, thus, nothing for meat eaters to eat, and ultimately, vast starvation, and then, extinction.
Explanation:
- 19. Plant cell have plastids - chromoplasts, chloroplasts, leucoplasts.
- 20. Animal cell do not have a cell wall. Its outermost covering is the cell membrane.
- 21. Plant cell do not have centrosomes.
- 22. Animal cell has cholesterol in the cell membrane.
- 23. Either vacuoles are absent or present in small.
- 24. Plant cell has chloroplast.
- 25. Storage material is starch for plant cell.
Hope you could understand.
If you have any query, feel free to ask.
