Biological evolution is the process by which populations of organisms change over time. How could natural selection lead to the evolution of a species?
Well, there is no options to pick from so im going with my gut there are 2 uses for the horns:
#1. They were used for defense
#2. they were used to kill prey
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The answer is A :)
both horseshoe crabs and spiders produce silk
Ummmm... from my book females have wider area 90 degrees or something like that, while males have slimmer area like 60 degrees or something. Obviously not everyone has that type of area surface but I think ?typically? They are around those degrees.
Well, hope this helps you even though it is all weird and stuff