Biology: Classification of Living Organisms

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21 Questions

What is the correct classification of the tomato species?

Kingdom: Plantae, Division: Tracheophyta, Class: Angiospermae

What is the term for a group of species with a large number of similar characteristics?

Genus

What is the classification level that groups related families together?

Order

What is the term for a group of plants with the same characteristics?

Species

What is the correct format for writing a species name?

Genus name followed by species name

What is the classification level above classes in the botanical classification system?

Division

What is the primary reason why botanical classification is essential for farmers?

To develop a successful crop rotation system

What is the basis of the botanical classification system?

The species

Why do related crops often attract the same diseases and insects?

Because of their common genetic makeup

What is the purpose of classifying vegetables according to their botanical relationships?

To minimize disease and pest risks

What is the significance of understanding the botanical relationships between crops and weeds?

It helps in understanding the risks of disease transmission

What is the hierarchical system of classification based on?

Grouping of organisms based on their morphology, anatomy, and genetics

Why is it important to consider the botanical relationships between crops when developing a crop rotation system?

To minimize disease and pest risks

What is the significance of botanical classification in crop production?

It helps in understanding the relationships between crops and developing strategies to minimize disease and pest risks

What is the term used to describe the genetic makeup of a plant?

Genotype

Which of the following is an example of a fruit crop?

None of the above

Which of the following is NOT an example of a leafy crop?

Carrot

What is the term used to describe the morphological appearance of a plant?

Phenotype

Which of the following is an example of an underground stem?

Potato

Why do crops with the same edible part have similar storage and transport requirements?

Because they have similar storage and transport requirements

What is the main difference between fruit crops and crops where flower and fruit set should not occur during the production cycle?

Development and marketing problems

Study Notes

Introduction to Classification

  • A species is a group of plants with the same characteristics, genetically identical, and capable of interbreeding to produce viable offspring.
  • The species name is written as the genus name followed by the species name (e.g., Lycopersicon esculentum, the tomato).

Classification Hierarchy

  • Kingdom: the highest level of classification
  • Division: a grouping of classes with similar characteristics
  • Class: a grouping of related subclasses
  • Subclass: a grouping of related families
  • Family: a grouping of related genera
  • Genus: a grouping of related species
  • Species: the most specific level of classification
  • Examples of classification levels for tomato: Kingdom: Plantae, Division: Tracheophyta, Class: Angiospermae, Subclass: Dicotyledonea, Family: Solanaceae, Genus: Lycopersicon, Species: Lycopersicon esculentum

Importance of Classification

  • Classification is a useful tool in crop production, allowing for grouping of crops with similar characteristics
  • Classification can be done based on different criteria, depending on the reason for the classification

Botanical Classification

  • Botanical classification is based on the genetic makeup of plants, which is an important tool for studying plants
  • Related species often attract the same diseases and insects, and can act as a wintering host
  • Knowledge of botanical relationships is essential for working out a successful crop rotation system
  • The genetic makeup of a plant is called the genotype, and the morphological appearance is called the phenotype

Classification Based on Edible Parts

  • Vegetables can be grouped based on the edible parts of the plant, such as roots, underground stems, stems, petiole, leaves, fruits, and seeds
  • Cultivation similarities exist between crops with the same plant part as produce
  • Examples of classification based on edible parts include:
    • Roots: beetroot, carrots, sweet potato, horseradish, parsnip, turnip, and radish
    • Underground stems: potato, taro, onion, leek, and garlic
    • Stem: asparagus and kohlrabi
    • Petiole: rhubarb and celery
    • Leaf: lettuce, spinach, cabbage, onion, mustard greens, cress, Brussels sprouts, kale, garlic chives, Swiss chard, chicory, parsley, and watercress

Understand the concept of species, genus, family, and order in biological classification. Learn how to identify and distinguish between different levels of classification.

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