need 2 hours

1. The same homeobox DNA sequence is shared in the developmental genes of mice and fruit flies, even though these two animals diverged from each other evolutionarily about 550 million years ago. What does this high level of conservation tells us about the homeobox sequence? Your response should be at least 200 words in length. You are required to use at least your textbook as source material for your response. All sources used, including the textbook, must be referenced; paraphrased and quoted material must have accompanying citations.

2. Define homeostasis and give an example of a negative feedback loop. Your response should be at least 200 words in length. You are required to use at least your textbook as source material for your response. All sources used, including the textbook, must be referenced; paraphrased and quoted material must have accompanying citations.

3. List the organ systems that are directly involved when one eats a meal and explain how they are involved.

Your response should be at least 500 words in length. You are required to use at least your textbook as source material for your response. All sources used, including the textbook, must be referenced; paraphrased and quoted material must have accompanying citations.

Answers can be found in Krogh, D. (2011). Biology: A guide to the natural world (Custom Vol. I). San Francisco, CA: Prentice Hall. Chapter 26 and 32 of the book