Which of the following animals exhibits only | vedclass

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(B) Extracellular digestion refers to the process where enzymes are secreted into a cavity or lumen outside the cells to break down food. In $Hydra$ (

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Earthworm

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(B) Extracellular digestion refers to the process where enzymes are secreted into a cavity or lumen outside the cells to break down food. In $Hydra$ (Phylum $Cnidaria$), digestion is both extracellular and intracellular. In $Earthworm$ $(Pheretima)$, $Cockroach$ $(Periplaneta)$, and $Pearl$ $oyster$ $(Pinctada)$, the digestive system is complete with a well-developed alimentary canal. These organisms exhibit exclusively extracellular digestion within the lumen of the digestive tract. However, among the given options, $Hydra$ is the one that performs intracellular digestion as well. Therefore, $Earthworm$, $Cockroach$, and $Pearl$ $oyster$ all exhibit extracellular digestion. Given the standard context of such questions, $Earthworm$ is the most common example of an organism with a complete digestive tract and extracellular digestion.

Genus Name	Two Characters $\&$ Class/Phylum
$A$. $Ascaris$	$(i)$ Body segmented,$(ii)$ Males and females distinct; Phylum: $Annelida$
$B$. $Salamandra$	$(i)$ $A$ tympanum represents ear,$(ii)$ Fertilization is external; Class: $Amphibia$
$C$. $Pteropus$	$(i)$ Skin possesses hair,$(ii)$ Oviparous; Class: $Mammalia$
$D$. $Aurelia$	$(i)$ Cnidoblasts present,$(ii)$ Organ level of organization; Phylum: $Coelenterata$

$a$. Cellular level of organisation	$1$. Cnidarians
$b$. Organ level of organisation	$2$. Platyhelminthes
$c$. Organ system level of organisation	$3$. Chordates
$d$. Tissue level of organisation	$4$. Porifera

Which of the following animals exhibits only extracellular digestion?

Similar Questions

Which pair of animals are not included in mammals?

$A$ shell,as a body covering,is not present in which of the following?

Match the following columns.
$a$. Cellular level of organisation $1$. Cnidarians
$b$. Organ level of organisation $2$. Platyhelminthes
$c$. Organ system level of organisation $3$. Chordates
$d$. Tissue level of organisation $4$. Porifera

Select the correct sequence for $a, b, c, d$.

Which one of the following pairs of animals is correctly matched with the kind of their body symmetry?

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