<span>A pedal steel guitar uses foot pedals and knee levers. It </span>allows the player to change pitches with his feet and knees (apex). <span>A pedal (or foot pedal) is something you can use if you want to alter the sound coming from your guitar or add various sound effects.</span>
It is referred to as a selective semipermeable membrane because it only allows certain things through, due to the size and shape of whatever is trying to get through.
The primary structure of a protein refers to the sequence of amino acids in the polypeptide chain. The primary structure is held together by peptide bonds that are made during the process of protein biosynthesis. Hope this helped :)
Answer:
Collenchyma is a supporting tissue composed of more or less elongated living cells with unevenly thickened, nonlignified primary walls.
Aerenchyma is a modification of the parenchyma to form a spongy tissue that creates spaces or air channels in the leaves, stems and roots of some plants, which allows exchange of gases between the shoot and the root.
Explanation:
The structure of the ear can be divided into three main parts: the outer ear or pinna<span>, the middle ear and the inner ear.
Hope this helps :)</span>
