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Hello!
✧・゚: *✧・゚:* *:・゚✧*:・゚✧
❖ Gregor Mendel wasn't able to prove his rules of inheritance using hawkweed (plant of the daisy family).
~ ʜᴏᴘᴇ ᴛʜɪꜱ ʜᴇʟᴘꜱ! :) ♡
~ ᴄʟᴏᴜᴛᴀɴꜱᴡᴇʀꜱ
Radioactivity due to heavy elements
Friction caused by earths fast rotation
Well depending on what the environmental change is the organisms will have to adapt, or move. if they don't they may not survive.
comment if you want an example or 2