Animals like fishes, amphibians, reptiles, birds, and mammals are included in the phylum Chordata based on common features such as:
The defining characteristics of Chordata include the presence of a notochord and a dorsal hollow nerve cord.
Question 92 of 214
📘 CLASS XI
In the classification system for plants, classes with a few similar characters are assigned to a higher category equivalent to the animal Phylum. What is this category called?
In plants, the category equivalent to phylum is known as Division.
Question 93 of 214
📘 CLASS XI
The highest category in the classification system of animals, comprising all animals from various phyla, is:
All animal phyla are included under the highest category, Kingdom Animalia.
Question 94 of 214
📘 CLASS XI
As we move higher in the taxonomic hierarchy from species to kingdom, what happens to the difficulty of determining the relationship to other taxa at the same level?
As higher taxonomic categories are considered, determining relationships becomes more difficult and classification becomes increasingly complex.
Question 95 of 214
📘 CLASS XI
Based on the taxonomic categories table, match the organism to its correct taxonomic Order:
According to the standard taxonomic classification, Mango (Mangifera indica) belongs to the order Sapindales. Housefly belongs to Diptera, Man to Primata and Wheat to Poales.
Question 96 of 214
📘 CLASS XI
What major revelation humbled humans and led to cultural movements for the conservation of biodiversity?
The realization that all living organisms are related to one another both horizontally and vertically inspired cultural movements for biodiversity conservation.
Question 97 of 214
📘 CLASS XI
According to the text, what was the biggest spin-off of the systematic and monumental description of life forms?
The greatest outcome of systematic biological studies was recognizing similarities among living organisms.
Question 98 of 214
📘 CLASS XI
When asking "what indeed is life?", scientists attempt to answer a technical question rather than a philosophical one. What does this technical question seek to answer?
The scientific question focuses on distinguishing living from non-living rather than explaining the purpose of life.
Question 99 of 214
📘 CLASS XI
If you were to increase the area in which you make biological observations, what would naturally happen?
Increasing the observation area increases the diversity and variety of organisms encountered.
Question 100 of 214
📘 CLASS XI
Why is there a fundamental need to standardise the naming of living organisms through nomenclature?
Scientific nomenclature avoids confusion caused by different local names for the same organism.
