Biology, asked by venkadesh6131, 9 months ago

What do you mean by morphological evidence? explain with examples

Answers

Answered by jayantypradan
2

Explanation:

Morphological Evidence

Data is used to:

Detect and explain patterns of variation

Define the limits of a species

Determine evolutionary relationships

Identify plant species

Provide a classification in agreement with evolutionary relationships

Types of data:

Morphological

Pollination

Reproductive biology

Anatomy

Chromosomes

Palynology

Chemistry

Molecular

Morphological Data

Morphological data are features of external form or appearance.

Provide nearly all the characters used for plant identification

Also useful in phylogenetic studies and other systematic studies

MORPHOLOGICAL DATA HAS ALWAYS, AND STILL IS, THE PREDOMINANT TYPE OF DATA USED IN PLANT SYSTEMATIC STUDIES.

Morphological data sources:

Field samples

Herbarium samples

Qualitative characters

Quantitative characters

Data from vegetative and reproductive parts of the plants.

Types of vegetative morphological characters:

Duration and habit

Root types/parts

Stem types/parts

Leaf types/parts

Floral morphology

Floral morphology is often used to characterize biological species because it has direct effects on reproductive isolation.

Types of floral morphological characters:

Merosity and presence or absence of parts

Shapes of parts

Symmetry of flowers

Insertion

Placentation

Micromorphological data

Features of a plant that are only seen with compound light microscopes or electron microscopes e.g. epidermal cell shapes, seed coat morphology, pollen exine sculpturing

Answered by TheChessKing
4

Answer:

Morphological data are features of external form or appearance. Provide nearly all the characters used for plant identification. Also useful in phylogenetic studies and other systematic studies. MORPHOLOGICAL DATA HAS ALWAYS, AND STILL IS, THE PREDOMINANT TYPE OF DATA USED IN PLANT SYSTEMATIC STUDIES.

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