Please create a Frayer Model for 10 of the following words. Reminder - Frayer model should include Definition, example, what the definition means to you (in your own words), and a photo.



Adaptation, Analogous structures, Biological Resistance, Comparative morphology, Directional selection, Disruptive selection, Embryology, Evolution, Fossil Record, Genetic Drift, Homologous structures, natural selection, stabilizing selection, vestigial structures.

1 answer

1. Adaptation:
Definition: The process by which an organism or species changes in order to better survive and thrive in its environment.
Example: The long neck of a giraffe allows it to reach leaves on tall trees for food.
Meaning in my own words: Adaptation refers to an organism's ability to adjust and modify its characteristics or behaviors to suit its surroundings, ensuring its survival and reproduction.
[photo of a chameleon blending with its environment]

2. Analogous structures:
Definition: Body parts or organs that have similar functions in different organisms, but have different origins and structures.
Example: The wings of bats and butterflies, both adapted for flying, are analogous structures.
Meaning in my own words: Analogous structures are body parts that fulfill similar functions, even though they evolved differently in unrelated organisms, showcasing convergent evolution.
[photo comparison of a bee and a hummingbird's wings]

3. Biological resistance:
Definition: The ability of organisms to withstand the effects of substances or forces that would normally be detrimental to their survival.
Example: Bacteria developing resistance to antibiotics through genetic mutations.
Meaning in my own words: Biological resistance refers to an organism's capacity to endure and overcome harmful substances or influences, often through genetic adaptations that enhance their survival.
[photo of bacteria growing on a petri dish with antibiotic-resistant strains]

4. Comparative morphology:
Definition: The scientific study of the similarities and differences in the physical structures of different organisms.
Example: Comparing the anatomical structures of different bird species to understand their evolutionary relationships.
Meaning in my own words: Comparative morphology involves examining and comparing the physical characteristics of various organisms to gain insights into their evolutionary connections and shared traits throughout the tree of life.
[photo showing different types of bird beaks]

5. Directional selection:
Definition: A type of natural selection where individuals with a particular extreme trait are favored, causing the frequency of that trait to increase in a population over time.
Example: In a population of rabbits, those with longer legs have a higher chance of escaping predators, leading to an increase in the frequency of longer-legged rabbits over generations.
Meaning in my own words: Directional selection occurs when a specific extreme trait becomes more advantageous for survival and reproduction, leading to its increased prevalence in a population.
[photo of a long-beaked bird catching insects]

6. Disruptive selection:
Definition: A type of natural selection where individuals with extreme traits at both ends of the spectrum have higher fitness, while those with intermediate traits have lower fitness.
Example: In a population of finches, the ones with the largest and smallest beak sizes have a higher chance of finding food, while those with medium-sized beaks struggle to compete for resources.
Meaning in my own words: Disruptive selection occurs when individuals with extreme traits at both ends of a spectrum are favored over those with intermediate traits, potentially leading to the formation of separate subpopulations with distinct characteristics.
[photo of a moth with extreme dark and light coloration]

7. Embryology:
Definition: The branch of biology that studies the development of embryos from fertilization to birth or hatching.
Example: Examining the stages of human embryonic development to understand the formation of different organs and systems.
Meaning in my own words: Embryology refers to the investigation of how organisms develop from the earliest stage of conception until they are ready to survive independently in their respective environments.
[photo of different stages of chick embryonic development]

8. Evolution:
Definition: The process by which species change over time through the accumulation of small genetic modifications that lead to the development of new traits and the formation of diverse populations and species.
Example: The evolution of finches on the Galapagos Islands due to geographic isolation and natural selection, leading to the emergence of different beak shapes.
Meaning in my own words: Evolution encompasses the gradual, heritable changes that occur within populations of organisms over extensive periods, contributing to the incredible diversity of life on Earth.
[photo showing the evolution of horse ancestors]

9. Fossil Record:
Definition: The information provided by fossils, which are the preserved remains or traces of ancient organisms, allowing scientists to study the history and evolution of life on Earth.
Example: The discovery of dinosaur fossils providing insights into the existence and characteristics of ancient reptiles that lived millions of years ago.
Meaning in my own words: The fossil record provides a wealth of evidence about past life forms, enabling scientists to reconstruct the history and development of various organisms and ecosystems over geologic time.
[photo of a fossilized ammonite]

10. Genetic Drift:
Definition: A mechanism of evolutionary change caused by random fluctuations in the gene pool of a population, which can lead to the loss or fixation of particular genetic variants.
Example: A small population of squirrels getting hit by a natural disaster, leaving only a few individuals who may possess different allele frequencies than the original population.
Meaning in my own words: Genetic drift refers to the random changes in gene frequencies within a population over time, often resulting from chance events rather than natural selection, and potentially leading to the divergence of gene pools.
[photo illustrating genetic drift in a small population of butterflies]

Note: The photos provided are for illustrative purposes only and may not accurately depict the described concepts.
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