Answer:
i would say natural because the branches grafted together they weren't made to go together by a human
Explanation:
Hi there!
A prezygotic isolating mechanism is a mechanism that causes something to happen, not allowing the organisms to breed before fertilization. I'll explain each one for you.
A - That is postzygotic because the organisms were not stopped before fertilization. The result is a sterile organism.
B - Again, that is postzygotic because the organism was produced.
C - This is prezygotic! The sperm dying shows that something is in action to prevent fertilization, meaning that it cannot happen.
D - Fertilization was successful, so it is postzygotic.
ANSWER:
C - the sperm dies when it reaches the female tract
If you need help with any more problems, feel free to message me and I'd be more than happy to help you work through them and provide explanations.
Hope this helps!! :)
If there's anything else that I can help you with, please let me know!
Sorry but I do not understand your question
"The body develops proprioceptors to compensate for the missing limb" is the one among the following choices that <span>might be a reason a soldier with an amputated arm might experience phantom limb pain. The correct option among all the options that are given in the question is the fourth option or option "d".</span>