Answer: I would pick scenario 3.
Explanation:
It talks about a relevant factor in a local state. More and more trees are being chopped down today. This can make a community lack natural and fresh air.
Answer:
Class: Calcarea
Family: Phylum Porifera
Genus: Scypha/Sycon
Species: Sponge
according according to slideplayer.com better made sexual selection is driven by sex differences in reproductive rate.
