Answer:
I think the errors are: 'most' and 'deers' because there should only be one most and the plural form of deers is deer. Also, there should be an apostrophe after the deer and before the s to imply that the deer own the antlers (possessive).
Step-by-step explanation:
the proper sentence would be: Most male deer's antlers are shed and regrown every year.
Hope this helps!! Idk if it does