Fill in the blank: Preserved remains or traces of ancient organisms are called ________.

Fill in the blank: Breeding organisms with desired traits (e.g., dog breeding) is known as ________.

Fill in the blank: A trait that helps an organism survive and reproduce is called an ________.

Fill in the blank: How well an organism can survive and reproduce in its environment is called ________.

Fill in the blank: The process where organisms better suited to their environment survive and reproduce more is called ________.

Fill in the blank: The study of where organisms live and how they got there is called ________.

Fill in the blank: Body parts that are similar in structure but may differ in function (e.g., human arm and bat wing) are called ________.

Fill in the blank: Body parts with similar function but different structure (e.g., bird wing and insect wing) are called ________.

Fill in the blank: A body part that has lost its original function (e.g., human appendix) is called a ________.

Fill in the blank: The combined genetic information of all members of a population is called the ________.

Fill in the blank: How common a particular allele is in a gene pool is called ________.

Fill in the blank: A trait controlled by one gene (e.g., widow’s peak) is called a ________.

Fill in the blank: A trait controlled by many genes (e.g., height) is called a ________.

Fill in the blank: Natural selection that favors one extreme of a trait is called ________.

Fill in the blank: Selection that favors average traits and reduces variation is called ________.

Fill in the blank: Selection that favors both extremes of a trait is called ________.

Random change in allele frequencies, especially in small populations, is called ________.

A drastic reduction in population size and genetic diversity is known as the ________.

Reduced genetic diversity when a small group starts a new population is called the ________.

When allele frequencies in a population remain constant, this is called ________.

Conditions under which evolution does not occur are described by the ________.

When individuals select mates based on traits (e.g., bright feathers), this is called ________.

Movement of genes between populations (via migration) is known as ________.

A group of similar organisms that can reproduce and have fertile offspring is called a ________.

When populations can’t breed due to barriers, this is called ________.

Formation of a new species is known as ________.

When mating behaviors prevent reproduction, this is called ________.

When physical barriers separate populations, this is called ________.

When populations reproduce at different times, this is called ________.

The science of naming and classifying organisms is called ________.

The two-name system for species (e.g., Homo sapiens) is called ________.

A group of closely related species is called a ________.

The study of biological diversity and relationships is called ________.

A classification group (e.g., class, order) is called a ________.

A group of similar genera is called a ________.

A group of related families is called a ________.

A group of related orders is called a ________.

A group of related classes is called a ________.

A large group that includes many phyla is called a ________.

The evolutionary history of a species is called ________.

A group of organisms with a common ancestor is called a ________.

A clade that includes all descendants of one ancestor is called a ________.

A diagram showing evolutionary relationships is called a ________.

A trait that appears in recent ancestors but not older ones is called a ________.

The largest classification group (Bacteria, Archaea, Eukarya) is called a ________.

The domain of unicellular prokaryotes with cell walls (no nucleus) is called ________.

The domain of prokaryotes that live in extreme environments is called ________.

The domain of organisms with eukaryotic (nucleus-containing) cells is called ________.

When no members of a species are alive, the species is said to be ________.

A scientist who studies fossils is called a ________.

Determining the age of a fossil by comparing placement with others is called ________.

A fossil used to define and identify a time period is called an ________.

Determining age using decay of radioactive isotopes is called ________.

The time for half of a radioactive substance to decay is called its ________.

The timeline of Earth's history is called the ________.

A major division of geologic time is called an ________.

What is the term for a subdivision of an era?

What is the theory that Earth's crust moves over time called?

What term describes big evolutionary changes over long time scales?

What is the normal extinction rate over time called?

What is the term for the sudden, widespread extinction of many species?

What is the term for slow and steady evolutionary change?

What is the term for long periods of stability followed by short bursts of change?

What is it called when one species evolves into many new species?

What is the term for different species evolving similar traits?

What is it called when two species evolve in response to each other?

What is the theory that mitochondria and chloroplasts originated from bacteria called?

Natural selection leads to evolution by:

Prokaryotic and eukaryotic cells differ in which of the following ways?

The main steps of protein synthesis are:

4. The body maintains homeostasis by:

Describe how energy flows through an ecosystem.