Identify the incorrect statement:
1. The earliest systems of classification used only gross superficial morphological characters.
2. Linnaeus classification of plants was a natural classification as it was based on the androecium structure.
3. Artificial systems gave equal weightage to vegetative and sexual characteristics.
4. Natural classification systems are based on natural affinities among the organisms
Identify the incorrect statement:
1. | Numerical Taxonomy is based on all observable characteristics. |
2. | More weightage is given to reproductive characters and all other characters are given equal importance in numerical taxonomy. |
3. | Cytotaxonomy is based on cytological information like chromosome number, structure, behaviour |
4. | Chemotaxonomy uses the chemical constituents of the plant |
Consider the following adaptations seen in plants:
I. Lack of cuticle
II. Presence of stomata for exchange of gases
III. Evolution of leaf
IV. Dominance of sporophyte
V. Structural support of vascular tissue
Which of the above adaptations would be required in a plant if it has to be successfully adapted to life on land?
1. All but I
2. All but I and III
3. I, II, III and IV
4. All
Phylogenetic system of classification is based on
(1) evolutionary relationships
(2) morphological features
(3) chemical constituents
(4) floral characters
Classical Taxonomy is based on
(1) morphological traits
(2) habitat of organisms
(3) similarities and dissimilarities of behaviour
(4) phylogeny