Question

Match the following list of animals with their level of organization.

Level of organization	Animal
A.	Organ level
B.	Cellular aggregate level
C.	Tissue level
D.	Organ System level

Choose the correct match showing the division of labor with animal example.

• A. $i-B, ii-C, iii-D$ and $iv-A$
• B. $i-B, ii-D, iii-C$ and $iv-A$
• C. $i-D, ii-A, iii-B$ and $iv-C$
• D. $i-A, ii-D, iii-C$ and $iv-B$

Answer 1

Answer: (C)

$i-D, ii-A, iii-B$ and $iv-C$

Answer 2

The correct option is (C) $i-D, ii-A, iii-B$ and $iv-C$

Pheretima, a member of the phylum Annelida, is organized at the organ system level.

Phylum Fasciola Platyhelminthes is organized at the organ level.

Spongilla belongs to the phylum Porifera and has a cellular aggregate level of organization.

Obelia is a phylum. An organism at the tissue level is present in Coelenterata.

The number of cells in multicellular organisms ranges from millions to trillions. These cells all carry out distinct tasks. In the body, tissues are made up of all the cells that have been trained to carry out certain tasks. Thus, a set of cells at a certain location in the body perform a specific function. Similar to this, several cell groupings inside an organism perform various roles. The division of labour in multicellular creatures is what gives rise to this.

Discover more from this chapter:Animal Kingdom