Levels of Organisation

Q.

______________ is the biggest form of an unicellular greenalgae visible to the naked eye.

1. Chlamydomonas

2. Volvox

3. Valonia ventricosa

4. Spirogyra

Q.

Organ system level of organization is seen in:

1. sponges

2. coelenterates

3. annelids

4. cnidarians

Q. Select the levels of body organisation.

1. Organellar
2. Bilateral
3. Cellular
4. Tissue level
5. Radial
6. Organ
7. Diplobastic
8. Organ system

Q. Which level of organization is found in the majority of animals?

1. Cellular grade
2. Cell-tissue grade
3. Tissue-organ grade
4. Organ system grade

Q. For frugivorous birds and mammals in the tropical forests of different continents, the slope is found to be

1. 1.3
2. 1.15
3. 1.7
4. 0.6

Q.

what is nodal tissue ?Are they present only in heart?

Q. Regeneration ability of sponges is due to

1. Reduction bodies
2. Gemmules
3. Archaeocytes
4. Germ cells

Q. Most complex protozoans are

1. Flagellates
2. Ciliates
3. Rhizopodes
4. Sporozoans

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

1. A-1, B-2, C-3, D-4
2. A-2, B-1, C-4, D-3
3. A-4, B-3, C-2, D-1
4. A-3, B-4, C-1, D-2

Q. Eyes are present in ___________.

1. Dugesia
2. Taenia
3. Fasciola
4. All of these

Q.

why i a cell a basic unit of living organism?