Complete the following statements by choosing one alternative from words given within the parentheses.

(Alpha taxonomy/Omega taxonomy) uses phylogenetic and evolutionary approaches understand taxonomic relationships of plants at all levels.

According to Takhtajan's system of classification Magnoliopsida (Dicots) are considered to be a more (primitive advanced) group than Liliopsida.

(Anaximander/Carl Linnaeus) proposed that the first animals that came into existence were fishes and that variol1s other animals came into being through a series of transmutations.

Define the following terms

The geological time scale

Adaptive radiation

Darwinian fitness

Fill in the blanks

system of classification is based on form-relationship principle.

According to Five Kingdom classification, vertebrates are placed in vertebrata.

gestures should have predated the spoken language as a form of communication.

Choose the correct answer:

The Herbaceous Flora of Dehradun is written by

C.R. Babu

J.K Maheshwari

P. Kachroo

B.M. Johri and Bharati Bhattacharya

List the three main phylogenetic systems of classification for plants and mention the merits of anyone of them.

Explain how the knowledge of molecular biology is used for the classification of organisms.

OR

Classify the kingdom Monera and describe the features of each phylum with suitable examples.

List the kind of information that can be obtained from a good botanical garden.

List two important ethological (behavioural) characteristics used in animal systematics and elaborate anyone such characteristic.

Giving one example each from plants and animals, illustrate how embryological and cytological evidences have proved helpful in classification.

Elaborate the following statement according to Darwin's basic tenets, "Evolution is descent with modification through variation and natural selection."

Explain how homologous organs and vestigial organs support speciation through evolution.

Justify _the statement "Man through technological revolution has modified the role of natural selection."

Outline the homonid lineage upto modern human and discuss the major evidences that support it.

Differentiate between any two of the pairs of terms given below:

Directional selection and Diversifying selection

Sympatric speciation and Geographical speciation

Sexual selection and Group selection

Write notes on any two of the following:

Binomial Nomenclature

A New Herbal

Type Specimens