Population Changes

Science

A trait that helps an organism survive in its environment

Adaptation

A trait that helps an organism survive in its environment. Adaptation. Adaptation is when living things change over time to better fit where they live.

A chemical that kills bacteria and other microorganisms, or slows their growth

Antibiotic

A chemical that kills bacteria and other microorganisms, or slows their growth. Antibiotic is a medicine used to treat bacterial infections.

Bacteria that become resistant to antibiotics

Antibiotic resistance

Bacteria that become resistant to antibiotics. Antibiotic resistance. Antibiotic resistance happens when bacteria change in a way that makes antibiotics unable to kill them or stop their growth.

A compartment within a boat that holds water, which is used to provide stability for a vessel

Ballast water

A compartment within a boat that holds water, which is used to provide stability for a vessel. Ballast water is water carried in special tanks on ships to help maintain balance and stability.

An inherited systems of behavior that helps organism to survive in its environment

Behavioral adaptation

An inherited system of behavior that helps an organism to survive in its environment is called behavioral adaptation. Behavioral adaptation is when animals change their behavior to better survive in their surroundings.

A gradual developing in species

Evolve

A gradual developing in species. Evolve. Evolve is the process by which living things change over generations to better adapt to their environment.

When no single living member of species exists

Extinct

When no single living member of species exists. Extinct. Extinct means a species no longer has any living members.

The ability of an organism to survive and reproduce in its environment

Fitness

The ability of an organism to survive and reproduce in its environment. Fitness. In science, fitness refers to how well an organism can survive and have offspring in its environment.

The history of life recorded by all the fossils we have collected

Fossil record

The history of life recorded by all the fossils we have collected. Fossil record. The fossil record is the collection of all known fossils and their placement in rock formations, providing evidence of past life on Earth.

A similar structure in different species, like a whale fin, bat wing and your arm

Homologous structure

A similar structure in different species, like a whale fin, bat wing, and your arm. Homologous structure. Homologous structures are anatomical features in different species that share a common ancestry but may serve different functions.

A species which arrived in ecosystem by human activity

Introduced species

A species which arrived in ecosystem by human activity. Introduced species. An introduced species is a plant or animal that humans bring to a new area where it is not naturally found.

An introduced organism that becomes overpopulated and negatively alters its new environment

Invasive species

An introduced organism that becomes overpopulated and negatively alters its new environment. Invasive species. An invasive species is a plant or animal that enters a new environment and causes harm by outcompeting native organisms.

A change in a cell’s DNA

Mutation

A change in a cells DNA. mutation. A mutation is a change or mistake in the DNA sequence that can alter how a living organism develops or functions.

A species which presence in region is the result of only natural processes

Native species

A species which presence in region is the result of only natural processes. Native species. Native species are plants or animals that naturally occur in a specific area or ecosystem without human intervention.

The individuals best suited to survive in an environment

Natural selection

The individuals best suited to survive in an environment. Natural selection. Natural selection is the process where organisms better adapted to their environment tend to survive and produce more offspring.

A species living outside its native distributional range

Non-native species

A species living outside its native distributional range. Non-native species. A non-native species is an organism introduced to a new environment where it doesn't naturally occur.

The evolution of new species from an existing species

Speciation

The evolution of new species from an existing species. Speciation. It's the process by which groups of the same species evolve to become distinct species, typically due to environmental changes or isolation.

A physical features that help organism to survive in its environment

Structural adaptation

A physical feature that helps an organism to survive in its environment. Structural adaptation. It's a change in a plant or animal's body part that helps it live successfully in its habitat.

A theory developed by the Charles Darwin

Theory of evolution

A theory developed by Charles Darwin theory of evolution. It explains how species change over time through natural selection.

Species with both "primitive" and derived traits

Transitional species

Species with both "primitive" and derived traits transitional species. Transitional species are organisms that exhibit traits typical of both ancestral and more modern forms, bridging evolutionary gaps.

Any difference between members of the same species

Variation

Any difference between members of the same species. Variation. In Science, variation refers to the differences in physical traits among individuals of the same species.