Biology- Chapter 16 Evolution

Front

What is the study of organisms at the early stages of development?

Back

Embryology is the study of organisms at the early stages of development.

Front

If an organism has a vestigial structure, that structure likely once had a function in a(n)

Back

Early ancestor.

Front

Who stated that by using or not using a certain body part, organisms could change in their lifetime and that the trait gained would be passed down to their offspring?

Back

Jean-Baptiste Lamarck.

Front

What is a random change in the DNA of a gene called?

Back

Mutation.

Front

What are structures that are similar in different species due to shared ancestry called?

Back

Homologous structures.

Front

What is the process by which organisms better adapted to their environment tend to survive and produce more offspring?

Back

Natural selection.

Front

What term describes the preserved remains or traces of organisms that lived in the past?

Back

Fossil record.

Front

What is the term for the genetic makeup of an organism?

Back

Genotype.

Front

What is the observable physical or biochemical characteristics of an organism called?

Back

Phenotype.

Front

What is the term for the variety of different types of genes in a population?

Back

Gene pool.