Natural Selection I Survival of the Fittest?

You may have seen someone shrug and say, “survival of the fittest,” but what does that really mean? What does "fitness" have to do with survival?
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IN THIS EPISODE:
-Mechanism of Evolution
-Trait Variations (Advantageous and Disadvantageous Traits)
-Mutations
-Survival of the Fittest
-Natural Selection Example with Wildflowers (traits that affect reproduction directly and indirectly)
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NGSS
MS-LS4-4 Biological Evolution: Unity and Diversity
Construct an explanation based on evidence that describes how genetic variations of traits in a population increase some individuals’ probability of surviving and reproducing in a specific environment.
MS-LS4-6
Use mathematical representations to support explanations of how natural selection may lead to increases and decreases of specific traits in populations over time.
MS-LS3-1
Develop and use a model to describe why structural changes to genes (mutations) located on chromosomes may affect proteins and may result in harmful, beneficial, or neutral effects to the structure and function of the organism. Emphasis is on conceptual understanding that changes in genetic material may result in making different proteins. Assessment does not include specific changes at the molecular level, mechanisms for protein synthesis, or specific types of mutations.
HS-LS4-2
Construct an explanation based on evidence that the process of evolution primarily results from four factors: (1) the potential for a species to increase in number, (2) the heritable genetic variation of individuals in a species due to mutation and sexual reproduction, (3) competition for limited resources, and (4) the proliferation of those organisms that are better able to survive and reproduce in the environment.
HS-LS4-3
Apply concepts of statistics and probability to support explanations that organisms with an advantageous heritable trait tend to increase in proportion to organisms lacking this trait.
HS-LS4-4
Construct an explanation based on evidence for how natural selection leads to adaptation of populations. HS-LS4-5
Evaluate the evidence supporting claims that changes in environmental conditions may result in (1) increases in the number of individuals of some species, (2) the emergence of new species over time, and (3) the extinction of other species.
TEKS
SCI.7.11.C
Organisms and environments. The student knows that populations and species demonstrate variation and inherit many of their unique traits through gradual processes over many generations. The student is expected to: identify some changes in genetic traits that have occurred over several generations through natural selection and selective breeding such as the Galapagos Medium Ground Finch (Geospiza fortis) or domestic animals and hybrid plants.
SCI.9-11.B.7.E
Science concepts. The student knows evolutionary theory is a scientific explanation for the unity and diversity of life. The student is expected to: analyze and evaluate the relationship of natural selection to adaptation and to the development of diversity in and among species.
SCI.9-11.B.7.F
Science concepts. The student knows evolutionary theory is a scientific explanation for the unity and diversity of life. The student is expected to: analyze other evolutionary mechanisms, including genetic drift, gene flow, mutation, and recombination.
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[@kgbspdr5426]

ayee this was the video you were filming when i ran into you!

[@kgbspdr5426]

actually went back to this creek later and had a blast found small fossils and some crawfish

[@madgardenscience]

That’s awesome! It’s a great spot ☺️

[@user-kg8wm9hv5f]

Great video ❤

[@madgardenscience]

Thank you!

[@user-sh5rt5yv5c]

awesome video

[@madgardenscience]

Thank you 💛🤓