Answer the following question given this paragraph: Like strong acids, strong bases can be harmful to organisms and damaging to materials. Bases have a bitter taste and feel slimy to the touch. They can also burn the skin. Bases, like acids, can be identified with litmus paper. Bases turn red litmus paper blue. Q: What color does red litmus paper turn in the presence of a base? Choices: - green - purple - white - blue A:
blue
Answer the following question given this paragraph: Most archaea are chemotrophs and derive their energy and nutrients from breaking down molecules in their environment. A few species of archaea are photosynthetic and capture the energy of sunlight. Unlike bacteria, which can be parasites and are known to cause a variety of diseases, there are no known archaea that act as parasites. Some archaea do live within other organisms. But these archea form mutualistic relationships with their host, where both the archaea and the host benefit. In other words, they assist the host in some way, for example by helping to digest food. Q: Are the majority of archaea chemotrophs or photosynthetic? Choices: - photosynthetics - neither - autotrophs - chemotrophs A:
chemotrophs
Q: Answer the following question given this paragraph: Fungal mycelia. Fungi absorb nutrients from the environment through mycelia. The branching mycelia have a high surface-area-to-volume ratio which allows for efficient absorption of nutrients. Some fungi digest nutrients by releasing enzymes into the environment. Q: Fungi absorb nutrients from the environment through what? Choices: - spores - apothecia - hymenium - mycelia A:
A: mycelia
Question: Answer the following question given this paragraph: Many mammals are herbivores. Herbivores are heterotrophs that eat only or mainly plant foods (or algae). Depending on the species of mammals, they may eat leaves, shoots, stems, roots, seeds, nuts, fruits, flowers, and/or grasses. Some mammals even eat conifer needles or tree bark. Mammals that are herbivores include rabbits, mice, sheep, zebras, deer, kangaroos, and monkeys. The manatee in Figure below is also a herbivorous mammal. It eats mainly kelp (seaweed). Q: Herbivores are heterotrophs that eat only or mainly what? Choices: - decayed matter - animals - fish - plants A:
Answer: plants
*Question*
Answer the following question given this paragraph: Pressure Associated with the Lungs The pressure inside the lungs increases and decreases with each breath. The pressure drops to below atmospheric pressure (negative gauge pressure) when you inhale, causing air to flow into the lungs. It increases above atmospheric pressure (positive gauge pressure) when you exhale, forcing air out. Lung pressure is controlled by several mechanisms. Muscle action in the diaphragm and rib cage is necessary for inhalation; this muscle action increases the volume of the lungs thereby reducing the pressure within them Figure 11.39. Surface tension in the alveoli creates a positive pressure opposing inhalation. (See Cohesion and Adhesion in Liquids: Surface Tension and Capillary Action. ) You can exhale without muscle action by letting surface tension in the alveoli create its own positive pressure. Muscle action can add to this positive pressure to produce forced exhalation, such as when you blow up a balloon, blow out a candle, or cough. Q: During what phase of breathing does the pressure inside the lungs drops to below atmospheric pressure? Choices: - conduction - exhalation - ingestion - inhalation A:
**Answer**
inhalation
*Question*
Answer the following question given this paragraph: Freshwater biomes have water that contains little or no salt. They include standing and running freshwater biomes. Standing freshwater biomes include ponds and lakes. Lakes are generally bigger and deeper than ponds. Some of the water in lakes is in the aphotic zone, where there is too little sunlight for photosynthesis. Plankton and plants, such as the duckweed in Figure below , are the primary producers in standing freshwater biomes. Q: Ponds and lakes are examples of what kind of biome? Choices: - standing lake biome - standing marine biome - standing liquid biome - standing freshwater biome A:
**Answer**
standing freshwater biome