MS-LS4-6: Natural Selection Process

Front

Natural Selection Noun

---

[nach-er-uhl suh-lek-shuhn]

Back

Natural Selection

---

The process where organisms with beneficial traits for their environment survive and reproduce more, passing those traits to offspring.

---

Example: Different finch beaks evolved to eat specific foods, showing natural selection.

Front

Adaptation Noun

---

[ad-ap-tay-shuhn]

Back

Adaptation

---

A physical or behavioral trait that helps an organism survive and reproduce successfully in its specific environment.

---

Example: Different beak shapes of Darwin's finches show adaptation to specific food sources.

Front

Mutation Noun

---

[myoo-tay-shuhn]

Back

Mutation

---

A permanent change in the DNA sequence of a gene, which can result in new traits for an organism.

---

Example: UV radiation causes a mutation by forming a thymine dimer in DNA.

Front

DNA Noun

---

[dee-en-ay]

Back

DNA

---

The molecule carrying genetic instructions used in the growth, development, functioning, and reproduction of all known organisms.

---

Example: The image shows DNA's double helix structure with labeled base pairs and backbone.

Front

Trait Noun

---

[trayt]

Back

Trait

---

A specific, observable characteristic of an organism, such as eye color or leg length, that can be inherited.

---

Example: Different eye colors show how traits like eye color can vary among individuals.

Front

Population Noun

---

[pop-yuh-lay-shuhn]

Back

Population

---

A group of organisms of the same species that live in the same geographical area and can interbreed.

---

Example: The graph shows how population size changes with environmental conditions, indicating optimal and stress zones.

Front

Inherit Verb

---

[in-her-it]

Back

Inherit

---

To receive genetic qualities or characteristics from parents or ancestors through genes passed down to offspring.

---

Example: A pedigree chart shows how traits are inherited through generations using symbols for males, females, and affected individuals.

Front

Antibiotic Resistance Noun

---

[an-tee-by-ot-ik ri-zis-tuhns]

Back

Antibiotic Resistance

---

The ability of bacteria and other microorganisms to withstand the effects of an antibiotic that was once effective.

---

Example: The image shows bacteria's resistance to antibiotics by illustrating clear zones where bacteria can't grow.

Front

Bacteria Noun

---

[bak-teer-ee-uh]

Back

Bacteria

---

Microscopic, single-celled organisms that exist in diverse environments and can be beneficial, harmless, or cause disease.

---

Example: This image shows the structure of a bacterium, highlighting its parts like the cell wall and DNA, helping students understand its microscopic nature.

Front

Antibiotics Noun

---

[an-tee-by-ot-iks]

Back

Antibiotics

---

A type of medicine that is used to treat bacterial infections by killing the bacteria or stopping their growth.

---

Example: This image explains that antibiotics are for bacterial infections, not viruses, but it is too complex, also showing side effects and usage advice.

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