Answer the following question given this paragraph: All living organisms must have the ability to reproduce. Living things make more organisms like themselves. Whether the organism is a rabbit, or a tree, or a bacterium, life will create more life. If a species cannot create the next generation, the species will go extinct. Reproduction is the process of making the next generation and may be a sexual or an asexual process. Sexual reproduction involves two parents and the fusion of gametes , haploid sex cells from each parent. Sexual reproduction produces offspring that are genetically unique and increases genetic variation within a species. Asexual reproduction involves only one parent. It occurs without a fusion of gametes and produces offspring that are all genetically identical to the parent. Q: All living organisms must have what ability, in order to make more organisms like themselves? Choices: - absorption - cloning - variation - reproduction A:
reproduction
Answer the following question given this paragraph: Hundreds of species of birds have gone extinct as a result of human actions. A well-known example is the passenger pigeon. It was once the most common bird in North America, but over-hunting and habitat destruction led to its extinction in the 1800s. Habitat destruction and use of the pesticide DDT explain the recent extinction of the dusky seaside sparrow. This native Florida bird was declared extinct in 1990. Q: Which single most factor is responsible for the extinction of hundreds of species of birds? Choices: - diet - animal actions - habitat - human actions A:
human actions
Q: 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:
A: lung
Question: Answer the following question given this paragraph: Water is involved in many biochemical reactions. As a result, just about all life processes depend on water. Q: Just about all life processes depend on what? Choices: - air - carbon - meat - water A:
Answer: water
*Question*
Answer the following question given this paragraph: Ocean water releases dissolved carbon dioxide into the atmosphere when water temperature rises. Q: Ocean water releases dissolved carbon dioxide into the atmosphere when what happens to the temperature? Choices: - Later - Drops - Goes Down - it rises A:
**Answer**
it rises
(Q).
Answer the following question given this paragraph: Bicarbonate Bicarbonate is the second most abundant anion in the blood. Its principal function is to maintain your body's acid-base balance by being part of buffer systems. This role will be discussed in a different section. Bicarbonate ions result from a chemical reaction that starts with carbon dioxide (CO2) and water, two molecules that are produced at the end of aerobic metabolism. Only a small amount of CO2 can be dissolved in body fluids. Thus, over 90 percent of the CO2 is converted into bicarbonate ions, HCO3, through the following reactions:. Q: Bicarbonate is the second most abundant anion in the blood. its principal function is to maintain your body's acid-base balance by being part of these? Choices: - curb systems - stream systems - compound systems - buffer systems A:
(A).
buffer systems