False ⇒ Our cells (human cells) contain DNA!
The correct answer is (b) Jupiter has mass less than that of sun which cannot generate enough pressure which can start hydrogen fusion. Jupiter has similar composition as both are entirely made up of hydrogen and helium. They both differ in the core and mass. The mass of Jupiter is so small as compared that it would not be able to generate enough pressure to start hydrogen fusion. Jupiter's core is made of metallic hydrogen and the core of sun is so hot that the hydrogen splits into electrons and protons. This generates hydrogen fusion.
Thus, Sun a star and Jupiter is not a star.
The correct answer is <span>D. circulatory, respiratory, nervous, endocrine
The other systems mentioned in the first three examples don't maintain oxygen levels at that body strain level.</span>
(a) The serum is the plasma without <u>clotting</u> factors.
(b) Phagocytic cells are <u>neutrophills</u> and monocytes.
(c) Eosinophils are linked with <u>allergic</u> reactions.
(d) In clotting, <u>calcium</u> ions play an important role.
(e) In an ECG, one can determine the heartbeat rate by counting the number of <u>QRS complex</u>.
<h3>EXPLANATION:</h3>
»» Blood without blood corpuscles is called plasma and plasma without clotting factors is called serum.
»» The professional phagocytes include many types of white blood cells (such as neutrophils, monocytes, macrophages, mast cells, and dendritic cells).
»» Eosinophils are associated with allergic reactions.
»» Calcium ions play a significant role in clotting.
»» When the cardiac rhythm is regular, the heart rate can be determined by the interval between two successive QRS complexes.
it means it is a recessive trait
Explanation:
