Answer the following question given this paragraph: In the health sciences, the concentration of a solution is typically expressed asparts per thousand (ppt), indicated as a proportion. For example, adrenalin, the hormone produced in high-stress situations, is available in a 1:1000 solution, or one gram of adrenalin per 1000 g of solution. The labels on bottles of commercial reagents often describe the contents in terms of mass percentage. Sulfuric acid, for example, is sold as a 95% aqueous solution, or 95 g of H2SO4 per 100 g of solution. Parts per million and parts per billion are used to describe concentrations of highly dilute solutions. These measurements correspond to milligrams and micrograms of solute per kilogram of solution, respectively. For dilute aqueous solutions, this is equal to milligrams and micrograms of solute per liter of solution (assuming a density of 1.0 g/mL). Q: What is the hormone produced in high-stress situations? Choices: - testosterone - thyroxine - somatostatin - adrenalin A:
adrenalin
(Question)
Answer the following question given this paragraph: The arrow in Figure above shows that the reaction goes from left to right, from hydrogen and oxygen to water. The reaction can also go in the reverse direction. If an electric current passes through water, water molecules break down into molecules of hydrogen and oxygen. This reaction would be represented by a right-to-left arrow in Figure above . Q: If an electric current passes through water, water molecules break down into molecules of what? Choices: - carbon and oxygen - hydrogen and carbon - oxygen and methane - hydrogen and oxygen A:
(Answer)
hydrogen and oxygen
Ques: Answer the following question given this paragraph: 20.3 | Terrestrial Biomes By the end of this section, you will be able to: Identify the two major abiotic factors that determine the type of terrestrial biome in an area Recognize distinguishing characteristics of each of the eight major terrestrial biomes Earth's biomes can be either terrestrial or aquatic. Terrestrial biomes are based on land, while aquatic biomes include both ocean and freshwater biomes. The eight major terrestrial biomes on Earth are each distinguished by characteristic temperatures and amount of precipitation. Annual totals and fluctuations of precipitation affect the kinds of vegetation and animal life that can exist in broad geographical regions. Temperature variation on a daily and seasonal basis is also important for predicting the geographic distribution of a biome. Since a biome is defined by climate, the same biome can occur in geographically distinct areas with similar climates (Figure 20.18). There are also large areas on Antarctica, Greenland, and in mountain ranges that are covered by permanent glaciers and support very little life. Strictly speaking, these are not considered biomes and in addition to extremes of cold, they are also often deserts with very low precipitation. Q: Terrestrial and aquatic are the two basic categories of what, on earth? Choices: - substrates - atmospheres - dendrites - biomes A:
Ans: biomes
(Q).
Answer the following question given this paragraph: Q: Some terrestrial species breathe through their skin and oral cavity because they lack what? Choices: - windpipe - nose - mouth - lungs A:
(A).
lungs
Ques:Answer the following question given this paragraph: The cell walls in many species of fungi contain chitin. Chitin is tough carbohydrate found in the shells of animals such as beetles and lobsters. The cell wall of a plant is made of cellulose, not chitin. Q: Chitin is a substance that is found in what part of animals like beetles and lobsters? Choices: - brains - tails - eggs - shell A:

Ans:shell
Answer the following question given this paragraph: Watch this video (http://openstaxcollege. org/l/symmetry2) to see a quick sketch of the different types of body symmetry. Layers of Tissues Most animal species undergo a layering of early tissues during embryonic development. These layers are called germ layers. Each layer develops into a specific set of tissues and organs. Animals develop either two or three embryonic germs layers (Figure 15.5). The animals that display radial symmetry develop two germ layers, an inner layer (endoderm) and an outer layer (ectoderm). These animals are called diploblasts. Animals with bilateral symmetry develop three germ layers: an inner layer (endoderm), an outer layer (ectoderm), and a middle layer (mesoderm). Animals with three germ layers are called triploblasts. Q: What term is used to describe animals with three germ layers? Choices: - sporozoans - triplegerm - multilayer - triploblasts A:
triploblasts