Biology

Phosphorus is a key component of nucleic acids, such as DNA and RNA, where it forms part of the phosphate backbone. Amino acids and carbohydrates do not contain phosphorus as a fundamental element.

The scientific name Homo sapiens is composed of the genus name 'Homo' and the species name 'sapiens'. Therefore, the Latin name includes the genus and species.

The spinal cord is divided into cervical, thoracic, lumbar, sacral, and coccygeal regions. 'Pelvic' is not a recognized region of the spinal cord, making option B the correct answer.

Serum is the component of blood plasma that remains after the blood has clotted and the clotting proteins have been removed. Therefore, serum is plasma minus its clotting proteins.

Voluntary muscles are those that can be consciously controlled. The biceps is a skeletal muscle that is voluntary, whereas cardiac muscle, stomach muscle (smooth muscle), and vessels (also smooth muscle) are involuntary.

The aorta is the largest artery in the human body, responsible for carrying oxygenated blood from the heart to the rest of the body. The other arteries listed are smaller and serve more localized regions.

HMPV stands for Human Metapneumovirus, which is a common respiratory virus. Option A correctly reflects this full form, while the other options are incorrect or fabricated terms.

Hepatitis is an inflammation of the liver caused primarily by viral infections, such as hepatitis A, B, C, D, and E viruses. Therefore, the correct cause among the options is a virus.

An albatross is a large sea bird known for its long wingspan and ability to glide over the ocean for long distances. Therefore, option A is correct.

The tiger is the largest species in the cat family, known for its size and strength, surpassing lions, leopards, and other big cats.