*Question*
Q: What refers to a group of individual organisms of the same species that live closely together? Read this paragraph and choose the correct option from the provided answers: Some single-celled organisms such as bacteria can group together and form a colony. A colony refers to a group of individual organisms of the same species that live closely together. This is usually done to benefit the group, such as by providing a stronger defense or the ability to attack bigger prey. A colony can also form from organisms other than bacteria. A bacterial colony often defends from a single organism, producing a colony of genetically identical individuals. Choices: - a enviroment - a flock - a habitat - a colony A:
**Answer**
a colony

*Question*
Q: Gibbs free energy values can be used to determine what? Read this paragraph and choose the correct option from the provided answers: Gibbs free energy values can be used to determine equilibrium constants. Choices: - equilibrium differentials - prime constants - equal lines - equilibrium constants A:
**Answer**
equilibrium constants

*Question*
Q: Surface tension forces between moleculse cause the surface of liquid to contract to what? Read this paragraph and choose the correct option from the provided answers: Surface Tension Cohesive forces between molecules cause the surface of a liquid to contract to the smallest possible surface area. This general effect is called surface tension. Molecules on the surface are pulled inward by cohesive forces, reducing the surface area. Molecules inside the liquid experience zero net force, since they have neighbors on all sides. Surface Tension Cohesive forces between molecules cause the surface of a liquid to contract to the smallest possible surface area. This general effect is called surface tension. Making Connections: Surface Tension Forces between atoms and molecules underlie the macroscopic effect called surface tension. These attractive forces pull the molecules closer together and tend to minimize the surface area. This is another example of a submicroscopic explanation for a macroscopic phenomenon. The model of a liquid surface acting like a stretched elastic sheet can effectively explain surface tension effects. For example, some insects can walk on water (as opposed to floating in it) as we would walk on a trampolinethey dent the surface as shown in Figure 11.28(a). Figure 11.28(b) shows another example, where a needle rests on a water surface. The iron needle cannot, and does not, float, because its density is greater than that of water. Rather, its weight is supported by forces in the stretched surface that try to make the surface smaller or flatter. If the needle were placed point down on the surface, its weight acting on a smaller area would break the surface, and it would sink. Choices: - typically surface area - Weak Surface area - strongest surface area - smallest surface area A:
**Answer**
smallest surface area

*Question*
Q: What is the foundation species of coral reef ecosystems? Read this paragraph and choose the correct option from the provided answers: Figure 19.24 Coral is the foundation species of coral reef ecosystems. (credit: Jim E. Maragos, USFWS). Choices: - anemones - crystals - molluscs - coral A:
**Answer**
coral