Biological Classification Quiz

What is the Linnaean system primarily based on?

• Similarity of physical features

• Similarity of colors

• Similarity of sizes

• Similarity of ages

What was the primary purpose of the binomial system invented by Carolus Linnaeus?

• To classify animals

• To consistently name plants

• To study human anatomy

• To develop new plant species

Which domain does not have a nuclear membrane?

• Eukaryota

• Archaea

• Protista

• Fungi

Answer explanation

The Archaea domain is characterized by prokaryotic cells, which lack a nuclear membrane. In contrast, Eukaryota, Protista, and Fungi all have cells with a defined nucleus enclosed by a nuclear membrane.

Which class of vertebrates is characterized by having feathers?

• Amphibians

• Birds

• Fish

• Mammals

Which class of vertebrates is characterized by having fur?

• Fish

• Birds

• Mammals

• Amphibians

Which class of vertebrates is characterized by having no fur?

• Reptiles

• Birds

• Mammals

• Fish

Which kingdom in the Linnaean classification system includes multicellular organisms that can photosynthesize?

• Fungi

• Protista

• Plantae

• Animalia

Answer explanation

The Plantae kingdom includes multicellular organisms that can photosynthesize, such as plants. In contrast, Fungi and Animalia do not perform photosynthesis, and Protista includes both photosynthetic and non-photosynthetic organisms.

What is the highest taxonomic rank in the Linnaean system?

• Family

• Class

• Order

• Domain

Answer explanation

In the Linnaean system, the highest taxonomic rank is Domain. It encompasses the broadest categories of life, including Archaea, Bacteria, and Eukarya, making it the most inclusive rank compared to Family, Class, and Order.

Which class of vertebrates is characterized by having scales and laying eggs?

• Reptiles

• Birds

• Mammals

• Amphibians

What is the primary characteristic of the kingdom Fungi?

• Parasitism

• Decomposition

• Symbiosis

• Photosynthesis

Answer explanation

The primary characteristic of the kingdom Fungi is decomposition. Fungi play a crucial role in breaking down organic matter, recycling nutrients in ecosystems, unlike plants that perform photosynthesis.