Dna in an individual’s gametes will most likely be altered before being passed to offspring if exposed to - x-rays ? -loud sounds ? - magnetic fields ? -extreme temperatures ?

I believe the closest possible answer to this question is that gametes are very sensitive to extreme temperatures, and extreme electromagnetic exposure such as x rays and gamma rays. Thank you for your question. Please don't hesitate to ask in your queries

What is the difference between cytokinesis in plant and animal cells? animal cells dived by a cleavage furrow. plant cells divide by a cell plate that eventually becomes the cell wall. cytoplasm and cell membranes are necessary for cytokinesis in both plant and animals.

Sorry  i don't understand can you rephrase that