An analytical taxonomic aid for identifying plants and animals based on similarities and dissimilarities is called

• Catalogue

• Flora

• Manual

• Key

• Key

Which of these is wrong about diatoms?

• Microscopic

• Planktonic

• Overlapping shells

• Spores with 2 flagella

• Spores with 2 flagella

Pick out the statement that does not apply to viroids

• Infectious agents smaller than viruses

• Cause potato spindle tuber disease

• Have free DNA

• Lack protein coat

• Lack protein coat

4.

Which of the following does not belong to Class -Basidiomycetes?

• Agaricus

• Trichoderma

• Puccinia

• Saccharomyces

• Saccharomyces

I. Unicellular Protists found in fresh water

II. Possess a protein-rich outer layer called pellicle

III. Have two flagella

IV. Possess pigments identical to those in higher plants.

These characters apply to genus

• Alternaria

• Nostoc

• Chlorella

• Euglena

• Euglena

Archaebacteria and Eubactaria have been included under the kingdom

• Monera

• Plantae

• Fungi

• Protista

• Protista

Match Column I with Column II and choose the right option

Column I	Column II
A. Amoeba	i. Has flagella for locomotion
B. Paramecium	ii. Moves with the help of cilia
C. Trypanosoma	iii. Puts out pseudopodia for locomotion

• A - iii; B - i; C - ii

• A - iii; B - ii; C - i

• A - ii; B - i; C - iii

• A - ii; B - i; C - iii

• A - ii; B - i; C - iii

Find out the wrong statements

(A) Ulothrix and Spirogyra are filamentous forms

(B) Porphyra and Laminaria are fresh water algae

(C) Stored food is in the form of mannitol in Rhodophycean members

(D) Chlorella and Spirulina are unicellular algae

• (A) and (B)

• (B) and (C)

• (A) and (C)

• (A) and (D)

• (A) and (D)

Diplontic type of life cycle is seen in
(i) Fucus

(ii) Gymnosperms

(iii) Pteriodophytes

(iv) Bryophytes

• (i) only

• (i) and (iv) only

• (i) and (iii) only

• (iii) only

• (iii) only

Which of the following statements is wrong about bryophytes?

• Bryophytes are also called amphibian of the plant kingdom.

• The gametophyte is the main plant body

• Sexual reproduction takes place in the presence of water

• Sporophyte is not free-living but attached to the photosynthesis gametophyte

• Sporophyte is not free-living but attached to the photosynthesis gametophyte