1. Even though millions of plants and animals have been identified, many organisms:
Correct Answer: B
Scientists have identified and described millions of plant and animal species. However, many organisms on Earth have not yet been discovered or studied, showing that the living world is extremely rich in diversity.
2. The wide range of organisms in size, colour, habitat, physiological and morphological features makes scientists:
Correct Answer: B
Living organisms show a great variety in their size, colour, habitat, physiological processes and morphological structures. Because of this huge diversity, scientists try to identify the defining characteristics that distinguish living organisms from non-living things.
3. Biologists have developed rules and principles mainly for:
Correct Answer: A
To study the large diversity of living organisms in an organized way, biologists developed rules and principles for identification (recognizing organisms), nomenclature (assigning scientific names), and classification (grouping organisms based on similarities).
4. The branch of biology that deals with identification, nomenclature and classification of organisms is called:
Correct Answer: C
Taxonomy is the branch of biology that deals with identification, nomenclature, and classification of organisms. It helps scientists organize and study the diversity of life in a systematic way.
5. Taxonomic studies of plants and animals are useful mainly in:
Correct Answer: A
Taxonomic studies help in identifying and classifying different species of plants and animals. This knowledge is very useful in agriculture, forestry, industry, and for understanding biological resources and biodiversity.
6. The basic principles of taxonomy such as identification, naming and classification are governed by:
Correct Answer: B
The principles of taxonomy such as identification, nomenclature (naming), and classification of organisms follow internationally accepted codes. These rules ensure that organisms are named and classified in a standard and universal way across the world.
7. According to binomial nomenclature, the scientific name of an organism consists of:
Correct Answer: B
In binomial nomenclature, each organism is given a scientific name consisting of two words. The first word represents the genus and the second word represents the specific epithet or species.
8. In taxonomy, an organism occupies a specific ______ in the system of classification.
Correct Answer: A
In biological classification, every organism is placed in a particular position based on its characteristics. This position shows its relationship with other organisms in the classification hierarchy.
9. In biological classification, different ranks or levels are generally called:
Correct Answer: B
In taxonomy, organisms are arranged into different ranks such as species, genus, family, order, class, phylum, and kingdom. These ranks are commonly referred to as taxonomic categories or taxa.
10. All taxonomic categories together form the:
Correct Answer: B
In biological classification, categories such as species, genus, family, order, class, phylum, and kingdom together form a structured system called the taxonomic hierarchy.