The correct answer is option C, that is, in the thylakoid membrane of the chloroplast.
Chlorophyll is situated in a clustered form in the thylakoid membrane of the organelles known as chloroplasts. Inside the thylakoid membrane, the chlorophyll molecule is enclosed by the proteins, which forms the complexes known as photosystems that mediate the light energy via the chlorophyll.
Isolation can be due to behavioral, geographical, or temporal barriers. <span>Speciation can take place in two general ways. A single species may change over time into a new form that is different enough to be considered a new species. This process is known as anagenesis. More commonly, a species may become split into two groups that no longer share the same gene pool. This process is known as cladogenesis. There are several ways in which anagenesis and cladogenesis may take place. In all cases, reproductive isolation occurs. Hope this helps! </span>
The answer to this question would be: better-stabilized knee joint
The quadriceps femoris muscle is located in the anterior part of the femur. This group of muscle is used for extension. It has no role in flexion, abduction or adduction. In general, training a muscle will stabilize the nearby joint. In this case, the quadriceps will stabilize the knee joint.