Several species of warblers can live in the same spruce tree only because they occupy different nitches within the tree. So option "c" is the correct option as far as the given question is concerned. These birds may not be of the same species but they do have some similarities like they are very vocal and can be rarely seen but definitely heard. All species of warblers are insectivorous and also very small. As they are small so identifying them can be very difficult for a person. These birds are mostly dull greenish or brownish in color.
The acetabulum is a fossa formed by the ilium, ischium and pubis which with the femoral head forms the coxal joint.
The acetabulum is made up of the three bones that make up the coxal bone (hip bone).
The ischium, which offers the lower and side limits to the acetabulum, makes up somewhat more than two-fifths of the structure.
Less than two-fifths of the acetabulum's structure is provided by the ilium, which also serves as the top limit of the joint.
The pubis, which is close to the midline, forms the remainder.
The acetabulofemoral joint (art. coxae), also known as the coxal joint, is the joint between the head of the femur and the acetabulum of the pelvis.
Its main job is to support the weight of the body in both static (such as while standing) and dynamic (such as when walking or running) postures.
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<span>New combinations of genes may be produced by </span>immigration, mutation and sexual reproduction. These new combinations are also called variations.
Answer: <em>The steps used in scientific methods are to ask a question, form a hypothesis, test the hypothesis, analyze the results, draw conclusions, and communicate results. A controlled experiment tests only one factor at a time so that scientists can determine the effects of changes to just that one factor.</em>
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