Answer the following question given this paragraph: The atoms that make up matter are in constant motion, so they have kinetic energy. All that motion gives matter thermal energy. Thermal energy is defined as the total kinetic energy of all the atoms that make up an object. It depends on how fast the atoms are moving and how many atoms the object has. Therefore, an object with more mass has greater thermal energy than an object with less mass, even if their individual atoms are moving at the same speed. You can see an example of this in Figure below . Q: What kind of energy constitutes the total kinetic energy of all the atoms that make up an object? Choices: - kinetic energy - phenomena energy - atmospheric energy - thermal energy A:
thermal energy
(Question)
Answer the following question given this paragraph: Intrapleural pressure is the pressure of the air within the pleural cavity, between the visceral and parietal pleurae. Similar to intra-alveolar pressure, intrapleural pressure also changes during the different phases of breathing. However, due to certain characteristics of the lungs, the intrapleural pressure is always lower than, or negative to, the intra-alveolar pressure (and therefore also to atmospheric pressure). Although it fluctuates during inspiration and expiration, intrapleural pressure remains approximately 4 mm Hg throughout the breathing cycle. Competing forces within the thorax cause the formation of the negative intrapleural pressure. One of these forces relates to the elasticity of the lungs themselveselastic tissue pulls the lungs inward, away from the thoracic wall. Surface tension of alveolar fluid, which is mostly water, also creates an inward pull of the lung tissue. This inward tension from the lungs is countered by opposing forces from the pleural fluid and thoracic wall. Surface tension within the pleural cavity pulls the lungs outward. Too much or too little pleural fluid would hinder the creation of the negative intrapleural pressure; therefore, the level must be closely monitored by the mesothelial cells and drained by the lymphatic system. Since the parietal pleura is attached to the thoracic wall, the natural elasticity of the chest wall opposes the inward pull of the lungs. Ultimately, the outward pull is slightly greater than the inward pull, creating the 4 mm Hg intrapleural pressure relative to the intraalveolar pressure. Transpulmonary pressure is the difference between the intrapleural and intra-alveolar pressures, and it determines the size of the lungs. A higher transpulmonary pressure corresponds to a larger lung. Q: Surface tension of alveolar fluid, which is mostly water, creates an inward pull of the tissue of what organ? Choices: - spleen - brain - heart - lung A:
(Answer)
lung
Ques: Answer the following question given this paragraph: Most modern seed plants are angiosperms that produce seeds in the ovaries of flowers. Q: Most modern seed plants are angiosperms that produce seeds in the what of flowers? Choices: - lungs - kidneys - stems - ovaries A:
Ans: ovaries
(Q).
Answer the following question given this paragraph: Once again, a mutation is the change in the DNA or RNA sequence. In multicellular organisms, mutations can be subdivided into germline mutations and somatic mutations. Germline mutations occur in the DNA of sex cells, or gametes, and are therefore potentially very serious. These mutations can be passed to the next generation. If the zygote contains the mutation, every cell in the resulting organism will have that mutation. If the mutation results in a disease phenotype, the mutation causes what is called a hereditary disease. Somatic mutations , which occur in somatic, or body, cells, cannot be passed to the next generation (offspring). Mutations present in a somatic cell of an organism will be present (by DNA replication and mitosis) in all descendants of that cell. If the mutation is present in a gene that is not used in that cell type, the mutation may have no effect. On the other hand, the mutation may lead to a serious medical condition such as cancer. Q: In multicellular organisms, mutations can be subdivided into germline mutations and? Choices: - elective mutations - comparative mutations - resultant mutations - somatic mutations A:
(A).
somatic mutations
Ques:Answer the following question given this paragraph: Fossil fuels are made from plants and animals that lived hundreds of millions of years ago. The plants and animals died. Their remains settled onto the ground and at the bottom of the sea. Layer upon layer of organic material was laid down. Eventually, the layers were buried very deeply. They experienced intense heat and pressure. Over millions of years, the organic material turned into fossil fuels. Q: Fossil fuels are made out of what two objects? Choices: - gases and animals - plants and water - soil and animals - plants and animals A:

Ans:plants and animals
Answer the following question given this paragraph: Section Summary 11.1 What Is a Fluid? A fluid is a state of matter that yields to sideways or shearing forces. Liquids and gases are both fluids. Fluid statics is the physics of stationary fluids. Q: What is the term for a state of matter that yields to sideways or shearing forces? Choices: - gravity - solid - plasma - fluid A:
fluid