Answer:
first question:The nucleus is particularly important among eukaryotic organelles because it is the location of a cell's DNA. Two other critical organelles are mitochondria and chloroplasts, which play important roles in energy conversion and are thought to have their evolutionary origins as simple single-celled organisms
:second question: The DNA in prokaryotes is contained in a central area of the cell called the nucleoid, which is not surrounded by a nuclear membrane.
Carbon Dioxide + Ethenol + Energy
<span>The correct answer is C. Whilst desert animals such as camels have evolved an internal 'air conditioning' system to help them stay cool, this is a process focused on keeping the brain cool whilst the rest of the body is hot, to ensure the animal's vital organs can function even in high temperatures. The alternative answers for this question all focus on the aquiring and retention of water.</span>