IGCSE Biology: Characteristics and Classification of Living Organisms

A collection of flashcards summarizing key concepts from the lecture on characteristics and classification of living organisms.

What does the mnemonic Mrs. Gren represent in biology?

It represents the seven characteristics of living organisms: Movement, Respiration, Sensitivity, Growth, Reproduction, Excretion, and Nutrition.

What is the definition of a species in biology?

A species is a group of organisms that can reproduce to produce fertile offspring.

What are the two parts of a binomial name?

The two parts are the genus and the species.

What is the main purpose of classification systems in biology?

To make it easier to study organisms and reflect evolutionary relationships between species.

What are the five kingdoms of living organisms?

Animals, Plants, Fungi, Protists, and Prokaryotes.

What characteristic defines vertebrates?

Vertebrates have a backbone.

What are the five classes of vertebrates?

Mammals, birds, reptiles, amphibians, and fish.

How do arthropods differ from other invertebrates?

Arthropods have jointed legs.

What are the main features of plants that allow for photosynthesis?

Plants have chlorophyll, which absorbs light energy.

Why are viruses not classified as living organisms?

Viruses cannot carry out the seven life processes on their own and must take over a living cell to reproduce.