BIO Unit 5: STAAR Practice Questions

Front

What is the scientific name for an organism composed of?

Back

The scientific name for an organism is made from the genus and species name.

Front

What are homologous structures?

Back

Homologous structures are anatomical features in different species that share a common ancestry, indicating evolutionary relationships.

Front

What are vestigial structures?

Back

Vestigial structures are remnants of organs or structures that had a function in an early ancestor but are no longer functional in the current organism.

Front

What is the significance of DNA comparison in evolution?

Back

Comparing DNA is considered the most definitive and accurate method to show evolutionary relationships among organisms.

Front

What is embryology in the context of evolution?

Back

Embryology is the study of embryos and their development, which can provide evidence for evolutionary relationships among species.

Front

Define evolution.

Back

Evolution is the process through which species change over time through mechanisms such as natural selection, mutation, and genetic drift.

Front

What is natural selection?

Back

Natural selection is the process by which organisms better adapted to their environment tend to survive and produce more offspring.

Front

What is a fossil?

Back

A fossil is the preserved remains or traces of an organism that lived in the past, providing evidence for evolution.

Front

What is a species?

Back

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

Front

What is the difference between a genus and a species?

Back

A genus is a group of closely related species, while a species is the most specific level of classification.