Answer:
When sodium bicarbonate is added to the water, the bicarbonate ion acts as a carbon source for photosynthesis causing the leaf disks to sink. As photosynthesis proceeds, oxygen is released into the interior of the leaf, which changes its buoyancy causing the disk to rise.
hope this helps :)
It can honestly be all of the above ..
Answer:
Pickling- Food preserved in vinegar
Salting- Food preserved in salt such as fish, meat
Smoking- Smoking of fish and meat prevent spoilage by dehydration
Sterilization- To remove microbes from food.
Answer:
The answer is A. Hope this helps :)
Answer:
d) Stratified layering
Explanation:
The wall of the ducts is formed by a lining epithelium that forms a small tube with a central lumen. The epithelium that forms the duct is initially of the simple cubic type. If the gland is small and the duct is short, it maintains this structure throughout its course, subjected to a high degree of pressure.
These ducts have from more complex glands the duct epithelium ends up becoming simple prismatic and may even become stratified. In this case, the tissues have stratified layering