Answer the following question given this paragraph: 44.4 Aquatic Biomes Aquatic ecosystems include both saltwater and freshwater biomes. The abiotic factors important for the structuring of aquatic ecosystems can be different than those seen in terrestrial systems. Sunlight is a driving force behind the structure of forests and also is an important factor in bodies of water, especially those that are very deep, because of the role of photosynthesis in sustaining certain organisms. Density and temperature shape the structure of aquatic systems. Oceans may be thought of as consisting of different zones based on water depth and distance from the shoreline and light penetrance. Different kinds of organisms are adapted to the conditions found in each zone. Coral reefs are unique marine ecosystems that are home to a wide variety of species. Estuaries are found where rivers meet the ocean; their shallow waters provide nourishment and shelter for young crustaceans, mollusks, fishes, and many other species. Freshwater biomes include lakes, ponds, rivers, streams, and wetlands. Bogs are an interesting type of wetland characterized by standing water, lower pH, and a lack of nitrogen. Q: What kind of ph would you find in water from bogs? Choices: - normal ph - higher ph - regular ph - lower ph A:
lower ph
Answer the following question given this paragraph: Alkenes Organic compounds that contain one or more double or triple bonds between carbon atoms are described as unsaturated. You have likely heard of unsaturated fats. These are complex organic molecules with long chains of carbon atoms, which contain at least one double bond between carbon atoms. Unsaturated hydrocarbon molecules that contain one or more double bonds are called alkenes. Carbon atoms linked by a double bond are bound together by two bonds, one bond and one bond. Double and triple bonds give rise to a different geometry around the carbon atom that participates in them, leading to important differences in molecular shape and properties. The differing geometries are responsible for the different properties of unsaturated versus saturated fats. Ethene, C2H4, is the simplest alkene. Each carbon atom in ethene, commonly called ethylene, has a trigonal planar structure. The second member of the series is propene (propylene) (Figure 20.7); the butene isomers follow in the series. Four carbon atoms in the chain of butene allows for the formation of isomers based on the position of the double bond, as well as a new form of isomerism. Q: What are alkenes organic compounds that contain one or more double or triple bonds between carbon atoms described as? Choices: - saturated - insulated - strong - unsaturated A:
unsaturated
Q: Answer the following question given this paragraph: Vesicles and Vacuoles Vesicles and vacuoles are membrane-bound sacs that function in storage and transport. Vacuoles are somewhat larger than vesicles, and the membrane of a vacuole does not fuse with the membranes of other cellular components. Vesicles can fuse with other membranes within the cell system. Additionally, enzymes within plant vacuoles can break down macromolecules. Q: What is the name for membrane-bound sacs that function in storage and transport? Choices: - alleles - cells - tubules - vacuoles A:
A: vacuoles
Question: Answer the following question given this paragraph: Q: What sort of issues can be determined by looking for certain particles in amniotic fluid? Choices: - artificial disorders - organic disorders - impossible disorders - genetic disorders A:
Answer: genetic disorders
*Question*
Answer the following question given this paragraph: work: A force is said to do work when it acts on a body so that there is a displacement of the point of application, however small, in the direction of the force. Thus a force does work when it results in movement. The work done by a constant force of magnitude on a point that moves a distance in the direction of the force is the product, . Q: What results when a force does work? Choices: - side effect - momentum - pressure - movement A:
**Answer**
movement
Q: Answer the following question given this paragraph: Q: What is the only commercial way of reproducing plants such as orchids? Choices: - sexual reproduction - cross-breeding - grafting - cloning A:
A: cloning