The answer is letter B.
Muscles in animals are often or almost always found in pairs because they need to be able to both push and pull. Pushing and pulling are the basic movements that the skeletal system can perform. It occurs when individuals are lifting, walking, running, among others. Almost all activities need the push and pull motion of muscles to balance out movements. Without this mechanism, we might easily fall over while walking (e.g. hamstrings are pulling back while the quadriceps are pushing forward).
The strong rock is sedimentary and it doesn't have fossils and has extrusive foliation. The brittle rock is ingenous and has fossils and intrusive foliation. The hard black rock is metamorphic without fossils with extrusive foliation.
Distribution patterns—refer to how the individuals in a population are distributed in space at a given time. The individual organisms that make up a population can be more or less equally spaced, dispersed randomly with no predictable pattern, or clustered in groups. (Hope that helps)
The correct sequence is Sun ➡ Producers ➡ Consumers ➡ Decomposers.