8. DNA is found in the cell nucleus
9. 1) adenine. 2) cytosine. 3) guanine. 4) thymine.
‼️ 10. I don’t know this one‼️
11. A chromosome is a structure found inside the nucleus of a cell.
Answer:
I think d
Explanation:
Lipids perform three primary biological functions within the body: they serve as structural components of cell membranes, function as energy storehouses, and function as important signaling molecules. The three main types of lipids are triacylglycerols (also called triglycerides), phospholipids, and sterols.
The factor that may have caused this competition is the scarcity of food.
<h3>What is natural selection?</h3>
Natural selection has to do with the idea that species that are better adapted to their habitat live longer and have the opportunity to reproduce and transfer these favorable traits.
The factor that may have caused this competition is the scarcity of food. The original ground-dwelling frogs have different genetic make up which allowed then to live in different conditions ultimately making it possible for them to adapt to various conditions.
Different species of frogs developed as they lived in different niches because the organisms had to develop traits that enable them to survive in new niches which were passed on to offspring ultimately leading to the emergence of new species.
Learn more about natural selection:brainly.com/question/9830102
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<span>The correct option is C. The atmosphere is defined as the envelope of gases that surround the earth. The atmosphere is made up of nitrogen, oxygen, argon and other gases. The nitrogen has the highest percentage composition of 78%. The atmosphere is divided into five layers, the layer that is most close to the earth is called troposphere.</span><span />