Which of the following is common among a leec | vedclass

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Question

(A) The common feature among a leech,a mosquito,a bed bug,and a rat is that they all possess anticoagulants in their saliva or physiological systems t

Vedclass · Accepted Answer

All have anticoagulants

Vedclass · Answer

(A) The common feature among a leech,a mosquito,a bed bug,and a rat is that they all possess anticoagulants in their saliva or physiological systems to facilitate blood feeding. Leeches,mosquitoes,and bed bugs are hematophagous (blood-feeding) ectoparasites that inject anticoagulants to prevent blood clotting while feeding. While rats are not ectoparasites,they are mammals,and their physiological systems naturally involve complex blood-clotting mechanisms regulated by various factors,but in the context of biological classification questions of this type,the presence of anticoagulants is the intended commonality regarding their interaction with blood or blood-related processes.

Column $X$	Column $Y$
$(1)$ Aves	$(A)$ Endoskeleton made of cartilage
$(2)$ Amphibia	$(B)$ Left aortic arch
$(3)$ Chondrichthyes	$(C)$ First homeothermic animals
$(4)$ Mammalia	$(D)$ Metamorphosis

Which of the following is common among a leech,a mosquito,a bed bug,and a rat?

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Select the correct match for Column $X$ and Column $Y$:
Column $X$ Column $Y$
$(1)$ Aves $(A)$ Endoskeleton made of cartilage
$(2)$ Amphibia $(B)$ Left aortic arch
$(3)$ Chondrichthyes $(C)$ First homeothermic animals
$(4)$ Mammalia $(D)$ Metamorphosis

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