Which of the following is closest to a yard in length?

Second ionization energy:

A. is always less than first ionization energy
B. is always greater than first ionization energy
C. is equal to the first ionization energy
D. may be greater or less than the first ionization energy depending on the nature of the element

Chromosomes first become visible during which phases of mitosis:

A. Prometaphase
B. Telophase
C. Prophase 
D. Metaphase

Cell or Tissue death within a living body is called as__________?A. Neutrophilia
B. Nephrosis
C. Necrosis
D. Neoplasia

 

The planet that moves round the Sun at the highest speed is_________?

A. Jupiter
B. Venus
C. Mars
D. Mercury

Mercury

Mercury is the fastest planet, which speeds around the sun at 47.87 km/s. In miles per hour this equates to a whopg 107,082 miles per hour.

The human heart is _______ ?

A. Ampullary Heart
B. Pulsating Heart
C. Myogenic Heart
D. Neurogenic Heart

Hearts are of several types. In some invertebrates the heart is simulated by the nervous system to do its work. Such hearts are called Neurogenic hearts. The Human heart is myogenic. i.e, it receives the stimuli for contraction from the muscular node called sinu-auricular node or pace maker.
Myogenicis the term used for muscles or tissues that can contract on their own, without any external electrical stimulus, from the brain or sal cord forexample. Anexample of this phenomena is actually present in our kidneys to regulate the flow of blood in vessels. Another example is the human heart.