Ques:Answer the following question given this paragraph: Gross Anatomy of the Lungs The lungs are pyramid-shaped, paired organs that are connected to the trachea by the right and left bronchi; on the inferior surface, the lungs are bordered by the diaphragm. The diaphragm is the flat, dome-shaped muscle located at the base of the lungs and thoracic cavity. The lungs are enclosed by the pleurae, which are attached to the mediastinum. The right lung is shorter and wider than the left lung, and the left lung occupies a smaller volume than the right. The cardiac notch is an indentation on the surface of the left lung, and it allows space for the heart (Figure 22.13). The apex of the lung is the superior region, whereas the base is the opposite region near the diaphragm. The costal surface of the lung borders the ribs. The mediastinal surface faces the midline. Q: What are the pyramid-shaped, paired organs that are connected to the trachea by the right and left bronchi? Choices: - kidneys - stomachs - ovaries - lungs A:

Ans:lungs
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Ques:Answer the following question given this paragraph: Compounds that form from two or more nonmetallic elements, such as carbon and hydrogen, are called covalent compounds . In a covalent compound, atoms of the different elements are held together in molecules by covalent bonds. These are chemical bonds in which atoms share valence electrons. The force of attraction between the shared electrons and the positive nuclei of both atoms holds the atoms together in the molecule. A molecule is the smallest particle of a covalent compound that still has the properties of the compound. Q: Compounds that form from two or more nonmetallic elements are called what? Choices: - ionic bonds - valent bonds - hydrogen bonds - covalent bonds A:

Ans:covalent bonds
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Ques:Answer the following question given this paragraph: Physical science is the study of matter and energy. It includes chemistry, which focuses on matter, and physics, which focuses on energy. Q: What is the study of matter and energy referred to as? Choices: - biology - geology - cosmology - physical science A:

Ans:physical science
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Ques:Answer the following question given this paragraph: When amino acids bind together, they form a long chain called a polypeptide . A protein consists of one or more polypeptide chains. A protein may have up to four levels of structure. The lowest level, a protein's primary structure, is its sequence of amino acids. Higher levels of protein structure are described in Figure below . The complex structures of different proteins give them unique properties, which they need to carry out their various jobs in living organisms. You can learn more about protein structure by watching the animation at the following link: http://www. stolaf. edu/people/giannini/flashanimat/proteins/protein%20structure. swf . Q: When amino acids bind together, they form a long chain called what, which is an essential component of protein? Choices: - peptide - lipids - enzyme - polypeptide A:

Ans:
polypeptide
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