What is the shortest phase of mitosis?

Does mitochondria still meet the definition of a eukaryote why or why not?

What is the compliment dna strand to the following sequence: ttgactaggcta

The source of energy shown in the image is (renewable, non renewable, polluting) a drawback of building a dam is that (it will destroy ecosystems, it requires fossil fuels, it won’t be useful for irrigation)