Biology Taxonomy Quiz

The science of identifying, naming, and classifying organisms.

A two-word naming system used in taxonomy, where the first word is the genus and the second is the species.

A hierarchical classification system used in taxonomy, which groups organisms into seven categories based on shared characteristics, from largest to smallest: domain, kingdom, phylum, class, order, family, genus, and species.

A group of single-celled organisms lacking a nucleus, divided into Eubacteria and Archaebacteria.

Single-celled eukaryotic organisms with diverse characteristics, including animal-like, plant-like, and fungus-like.

Multicellular eukaryotic organisms that are heterotrophic and typically saprophytic, meaning they feed on dead or decaying matter.

Single-celled prokaryotes known as "true bacteria" that are found in most environments.

Single-celled prokaryotes known as "ancient bacteria" or "extremophiles" that thrive in harsh environments.

A visual tool that shows evolutionary relationships between organisms, including how much they've changed over time.

A diagram that only illustrates shared traits between species, not their ancestry.

The study of evolutionary relationships between organisms.

Comparing the physical structures of different species to determine evolutionary relationships.

Analyzing DNA and other biochemical components to reveal evolutionary relationships.

Similar body parts in different species, even if their functions are different, suggest a common ancestor.

Examining fossils to track species changes over time and understand evolutionary relationships.

Comparing early stages of development in related species to identify similarities that point to common ancestry.

The process of transmitting genetic information from one generation to the next.

Adenine pairs with Thymine (A-T) and Guanine pairs with Cytosine (G-C).

Changes in the DNA sequence caused by mutagens such as radiation, chemicals, or viruses.

The process of two homologous chromosomes exchanging genetic material during Prophase I of meiosis, resulting in new combinations of genes.

The random orientation and pairing of homologous chromosomes during Metaphase I of meiosis.

Changes in the frequency of certain genes in a population over time.

A change in allele frequencies due to random chance, especially impactful in small populations.

A change in allele frequencies due to the movement of individuals between populations, introducing new genes or removing existing ones.

The process by which new species arise from existing ones.

A group of organisms that can interbreed and produce fertile offspring.

The inability of two species to interbreed and produce fertile offspring.

A change in the allele frequencies of a population over time.

When unrelated species evolve similar traits due to similar environments or pressures.

When related species evolve similar traits in response to similar environmental conditions.

When two species evolve in response to each other, often in a symbiotic relationship.

When a species evolves to resemble another species, providing protection or advantage.

A type of genetic drift where a small group of individuals from a larger population colonizes a new area, leading to a different gene pool in the new population.

A type of genetic drift where a population experiences a drastic reduction in size, often due to a catastrophic event, resulting in a less diverse gene pool.

A process where individuals with certain advantageous traits are more likely to survive and reproduce, passing those traits to their offspring.

A process where humans intentionally select and breed organisms with desirable traits, leading to changes in populations over time.

Inherited physical characteristics that increase an organism's chances of survival and reproduction in its environment.

Inherited processes that regulate life activities, helping organisms cope with their environment.