It’s measured by pH, and things like lemon juice or vinegar are acidic. In biology, acidity can affect how plants grow or how animals survive in water.

Natural features like mountains, rivers, or oceans that separate groups of organisms and can prevent them from mating with each other. This can lead to the formation of new species over time.

How often a certain version of a gene appears in a population. It can change over time due to things like natural selection or mutations.

A trait that helps an organism survive and reproduce in its environment. Adaptations can be physical (like thick fur) or behavioral (like birds flying south for the winter).

groups of the same kind of living thing that live in the same place at the same time.

features or characteristics of a living thing, like eye color, height, or the shape of a leaf.

a protein in red blood cells that carries oxygen from the lungs to the rest of the body.

It travels from the lungs to the rest of the body to give cells the oxygen they need.

behavioral adaptation

something an animal does that helps it survive, like birds flying south for the winter.

group of living things that are similar and can have babies together.

high something is above sea level.

how hot or cold something is. It can affect how plants and animals live and grow.

an animal that hunts and eats other animals.

individuals with certain characteristics are more likely than other individuals to breed

individuals that reproduce often and have many offspring and contributing more to the gene pool of the next generation

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4-4: Adaptation

Adaptation to environment

Term	Definition
acidity	It’s measured by pH, and things like lemon juice or vinegar are acidic. In biology, acidity can affect how plants grow or how animals survive in water.
geographic barriers	Natural features like mountains, rivers, or oceans that separate groups of organisms and can prevent them from mating with each other. This can lead to the formation of new species over time.
gene frequency	How often a certain version of a gene appears in a population. It can change over time due to things like natural selection or mutations.
adaptation	A trait that helps an organism survive and reproduce in its environment. Adaptations can be physical (like thick fur) or behavioral (like birds flying south for the winter).
Populations	groups of the same kind of living thing that live in the same place at the same time.
Traits	features or characteristics of a living thing, like eye color, height, or the shape of a leaf.
Hemoglobin	a protein in red blood cells that carries oxygen from the lungs to the rest of the body.
Oxygenated blood	It travels from the lungs to the rest of the body to give cells the oxygen they need.
behavioral adaptation	something an animal does that helps it survive, like birds flying south for the winter.
species	group of living things that are similar and can have babies together.
Altitude	high something is above sea level.
Temperature	how hot or cold something is. It can affect how plants and animals live and grow.
predator	an animal that hunts and eats other animals.
sexual selection	individuals with certain characteristics are more likely than other individuals to breed
relative fitness	individuals that reproduce often and have many offspring and contributing more to the gene pool of the next generation

Created by: user-1948443

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