Biology - Study Mode

[#456] Which one is the longest bone in human body?
Correct Answer

(D) Femur

Explanation

Solution: The femur is one of the most researched bones in the human anatomy and forensic medicine. As the longest bone in the human body, it is well preserved in skeletal remains.

[#457] Number of ribs found in a typical human ribcage is
Correct Answer

(C) 24

Explanation

Solution: The ribs are a set of twelve paired bones which form the protective 'cage' of the thorax. They articulate with the vertebral column posteriorly, and terminate anteriorly as cartilage (known as costal cartilage). Number of ribs found in a typical human ribcage is 24.

[#458] The corner of the cells of collenchyma tissue in plant are thickened due to deposition of ________
Correct Answer

(C) Cellulose and pectin

Explanation

Solution: The collenchyma is thickened due to deposition of pectin and cellulose.

[#459] Which plant cells give support to plant body?
Correct Answer

(C) Sclerenchymatous cells

Explanation

Solution: Sclerenchyma cells also provide support to the plant, but unlike collenchyma cells, many of them are dead at maturity.

[#460] Which plants have vascular tissues i.e .xylem and phloem vessel?
Correct Answer

(A) Tracheophytes

Explanation

Solution: Tracheophytes have vascular tissues i.e .xylem and phloem vessel.