D) Lagging strand is composed of Okazaki fragments
Answer: Atmospheric Nitrogen is unreactive
Explanation:
The atmosphere is made up of about 80% Nitrogen, 16% oxygen, about 4% carbon dioxide, rare gases etc.
However, the 80% Nitrogen is highly unreactive, and needs to be trapped by competent micro organisms known as nitrogen-fixing bacteria in the root nodules of legumes.
Then, it is converted to several forms like nitrites, nitrates (easily absorbed by plants), ammonia and finally escape to the atmosphere again.
This brief illustration explains the NITROGEN CYCLE, and it is the only means by which plants and animals can use the highly unreactive nitrogen
B) Proteins
Lipids and Carbohydrates only contain carbon, hydrogen, and oxygen.
Unsaturated fats are a type of monomer for lipids, meaning they as well are only made up of carbon, hydrogen, and oxygen.
For me I love gaming but at the same time I have homework. So it is hard for me and I'm going through it right now but improving me. You must first think which one is important. Like is gaming important over homework or homework importance over gaming? You might choose the second one, why? It is really simple, you must first think about it. Homework that is due the net day must be done and today is the only day to do it. Gaming, you can play after homework since it is not due the next day, it is not gonna effect your life and future. And to understand what you are reading is to metaphor. To imagine the scene out on your mind. Make gist every paragraph you read and as questions.
Uranus is the 7th planet from the sun :))