Parasites that use only a single host species in their life are called monoxenic; those with multiple hosts are called heteroxenic. ... intermediate hosts are all the others. Paratenic hosts are hosts that are used only for transport; no life cycle stages are completed within the host.
Is that the full question
....Do you mean What can be used to make a black hole? thats easy a black marker and a dark blue marker. :P or blue and black pens
Answer:
Based on Pauling Scale, electro negativity of Cl = 3.2, Na = 0.9 and H = 2.1
Explanation:
Thus, Electronegativity difference in Cl2 = 3.2 -3.2 = 0
Electronegativity difference in NaCl = 3.2-0.9 = 2.3
Similarly, Electronegativity difference in HCl = 3.2 - 2.1 = 1.1
Thus, among the listed molecules following is the decreasing order of electronegativity difference: NaCl> HCl > Cl2
