Biology

Trachoma is a bacterial infection that affects the eyes, causing roughening of the inner surface of the eyelids and potentially leading to blindness if untreated. The other options are unrelated to bacterial eye diseases.

The normal human body temperature is approximately 37 °C, which the body maintains despite minor fluctuations due to homeostasis.

White Blood Cells (WBCs) are also known as leukocytes, which are cells of the immune system involved in protecting the body against infections. Lymphocytes are a type of WBC, nucleotides are building blocks of nucleic acids, and erythrocytes are red blood cells.

Leukemia is a type of cancer that affects blood and bone marrow and does not form solid tumors, unlike the other cancers listed which typically form tumors.

Oxygen makes up about 65% of the human body's mass, primarily because water (H2O) is a major component of the body. The other elements are present in smaller percentages.

RBCs stands for Red Blood Cells, which are scientifically called Erythrocytes. The other options are incorrect as Leucocytes are white blood cells, Nucleotides are building blocks of nucleic acids, and AOT is unrelated.

Vitamin E deficiency primarily causes neurological problems such as muscle weakness and vision issues due to its role as an antioxidant protecting nerve and muscle cells. Bone problems, rickets, and osteoporosis are not typically caused by vitamin E deficiency.

Gregor Mendel is known as the Father of Genetics because he discovered the fundamental laws of inheritance through his work on pea plants.

The femur is the longest and strongest bone in the human body, supporting the weight of the body and enabling leg movement. The stapes is the smallest bone, and the tibia is strong but not longer than the femur.

Thanatology is the scientific study of death and the practices associated with it, including the study of the needs of the terminally ill and their families.