Answer:
Do honeyguides in different areas of the world have a similar symbiosis with humans?
How old are the birds when they learn to respond to the humans’ calls?
Could other birds in the region form a similar symbiosis with humans?
Explanation:
Producing a contraction that changes both the length and the shape of the cell
Only unicellular orgaimns I might be wrong
Answer:
Kidney
Explanation:
Nephron is the basic unit of structure in the kidney