Genetic Biodiversity

What can reduce survival and fertility?

Inbreeding

What is the biggest group in living things?

Domain

What is a way to remember the classifications?

Dear King Philip Came Over For Good Soup

What are the 3 domains of life?

Bacteria, Archaea, Eukarya (BAE)

What are the kingdoms?

Fungi, Animalia, Plantae, Protista, Bacteria/Archaea

What are the 3 definitions of sepcies?

Morphological, biological, and phylogenetic

What are the 3 levels of biodiversity?

Genetic, Species, and ecosystem

What is a species?

a group of organisms that can interbreed and produce fertile offsprings.

Choose an organism and explain how it would be classified from Kingdom to Species.

Nutria rat

3 multiple choice options

Why is genetic variation important in a population?

it allows populations to adapt to environmental changes.

What could happen if a population has low genetic variation?

If a population has low genetic variation, it may not survive changes like disease, climate shifts, or habitat loss. Low variation can increase the risk of extinction because all individuals respond similarly to threats.

What is biodiversity? Describe the three levels of biodiversity and explain why it is important.

- Biodiversity is the variety of life on Earth.

- genetic diversity (differences within a species), species diversity (number of different species), and ecosystem diversity (variety of habitats).

- Biodiversity is important because it keeps ecosystems stable, allows species to adapt to changes, and supports life functions like food chains and nutrient cycling.

Explain the biological classification system used to organize living organisms. Include the main levels from broadest to most specific.

- The biological classification system organizes living organisms based on shared characteristics and evolutionary relationships.

- Domain, Kingdom, Phylum, Class, Order, Family, Genus, and Species

- helps scientists group organisms and understand how closely related they are.

1 multiple choice option

Describe at least two different scientific definitions of a species and explain how they differ.

The biological species concept defines a species as a group of organisms that can interbreed and produce fertile offspring.

Explain the difference between morphological and biological species concepts. Give an example of how scientists might use each.

- Morphological species concept groups organisms based on physical appearance

- biological species concept groups them based on the ability to reproduce and produce fertile offspring.

- Morphology is useful when reproduction cannot be observed

1 multiple choice option

What drives evolution?

- Mutation

- Natural selection

- Genetic Drift

- Gene Flow

Describe mutation...

creates new genetic variation.

Describe natural selection...

increases traits that improve survival

Describe genetic drift...

causes random changes in allele frequencies

Describe genetic flow...

moves genes between populations and increases similarity between groups.

Explain how gene flow affects populations.

the movement of genes between populations through migration and reproduction.

What happens when gene flow is high vs. when it is low?

High gene flow makes populations more genetically similar, while low gene flow allows populations to become more different over time. Barriers like rivers or mountains can reduce gene flow.

What is genetic drift?

a random change in allele frequencies in a population.

Why is it considered a random process? Give an example.

- it is based on chance events rather than survival advantage.

- For example, if a storm randomly kills many individuals, the remaining population's genes may change by chance.

What does it mean for an animal to be semi-aquatic? Give examples and explain how their habitat supports survival.

Semi-aquatic animals live both in water and on land

3 multiple choice options

Explain how barriers like mountains or rivers can affect gene flow and evolution of species.

Barriers such as mountains, rivers, or oceans can block movement between populations.

1 multiple choice option

What is adaptation?

a trait that improves an organism's ability to survive and reproduce in its environment.

Explain how natural selection leads to adaptations over time.

leads to adaptations because individuals with helpful traits survive longer and pass those traits to their offspring, making them more common over time.

A population of animals becomes separated by a river. Over time, the two groups become different species. Explain how this happens using evolution concepts.

When a population is separated by a river, gene flow between the two groups stops.

2 multiple choice options

Why do scientists use both physical traits and genetics to classify organisms?

some species may look similar but are genetically different, while others may look different but are genetically related.

1 multiple choice option

Describe how evolution changes populations over time using all four evolutionary processes.

the change in allele frequencies in a population over time.

2 multiple choice options

How does gene flow flow?

It moves genes between populations.

2 multiple choice options

What happens when there is low variations?

the species cannot adapt

Why does genetics matter?

Conservation

3 multiple choice options

What increases variations?

mutation

Which is random?

Drift

What is bacteria?

unicellular, prokaryotic organisms without a membrane-bound nucleus

1 multiple choice option

What is Archae?

unicellular, prokaryotic organisms without a membrane-bound nucleus.

1 multiple choice option

What is a Eukarya?

single-celled or multicellular organisms characterized by cells that have a membrane-bound nucleus.

What phylum is a worm?

Annelida

What are examples of a arthropoda?

insects

3 multiple choice options

What are examples of chordata?

vertebrates

What are examples of cnidaria and ctenophora?

Jellyfish

1 multiple choice option

Still learning (11)

You've started learning these terms. Keep it up!