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 |