<span>The challenge of reproducing is one of important manners which distinguishes migratory birds from another birds. The question is that which examples descrbe such manners, and for that, we can choose A, C and D</span>
B. Subtract those from those in the area from those in or arriving at the area.
Answer:
1. They keep casts to preserve the real fossils.
2. Maybe someone would steal a fossil and sell it on the dark web?
3. They keep casts to keep the real fossils in prime condition, by that I mean like undamaged.
Plant cells have a cell wall, a large vacuole, and plastids such as chloroplasts. The cell wall is a rigid layer that is found outside the cell membrane and surrounds the cell. It provides structural support and protection.
I hope this Helped!
Answer:
Biodiversity. Biodiversity is the most complex and vital feature of our planet. ...
Water. Water pollution is a huge concern for us and our environment. ...
Deforestation. We need plants and trees to survive. ...
Pollution. ...
Climate Change.
Explanation: