Answer:
B:17
Explanation:
The atomic number is always the Proton number.
Answer:
1
Explanation:
Lichen are usually the first thing to grow on bare rock, making them a pioneer species. Fun fact, you can use lichen to determine if the air quality in an ecosystem is polluted.
Hope this helped :)
Since homologous means same structure different functions, it shows that animals evolve to have the same structure as their ancestors but, have different uses to the part
Y is the best options because a secondary consumer will eat a primary consumer for energy (the grass hopper).
