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Platyhelminthes

Flatworms hav...

Question

Flatworms have ________ level of body organization.

A

Organ

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B

Tissue

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C

Cellular

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D

Acellular

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Solution

The correct option is B Organ
Organ grade of an organization is the aggregation of different kinds of tissues into organs which is a further advancement in the evolution of animals. Organs appeared first in Platyhelminthes or flatworms.
So, the correct answer is option A.

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Similar questions

Q. Match the following list of animals with their level of organization and choose the correct sequence:

	Column - I		Column - II
(A)	Organ level	(P)	Pheretima
(B)	Cellular aggregate level	(Q)	Fasciola
(C)	Tissue level	(R)	Spongilla
(D)	Organ system level	(S)	Obelia

Q. Match the following levels of organisation with their respective example.

	Level		Example
A	Cellular	1	Chordates
B	Tissue	2	Platyhelminthes
C	Organ	3	Coelenterates
D	Organ system	4	Sponges

Match the following list of animals with their level of organisation:

Animal	Level of organisation
A. Pheretima	I. Organ level
B. Fasciola	II. Cellular level
C. Spongilla	III. Tissue level
D. Obelia	IV. Organ system level

Q. Match the following and choose the correct options:

Column I	Column II
A. Organ level	I. Pheretima
B. Cellular aggregate level	II. Fasciola
C. Tissue level	III. Spongilla
D. Organ system level	IV. Obelia

Q. The lowest level of organization in a multicellular organism is the
(a) cell
(b) organ
(c) tissue
(d) organ system

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