Answer:
13
Explanation:
The atomic number for Aluminum (Al) is 13. If you have access to the periodic table, this would've taken a few seconds.
In terms of function, bird wings are used to flap transversely, whereas butterfly wings are used to flap laterally. In terms of structure, bird wings are filled with hollow bones for easier flight, whereas butterfly wings are structured by scales and tiny hairs.
Answer:
I believe the answer is a single bacteria cell.
this answer is True; weeds are specific variety of plants that strip the nutrients from the soil.
