THEORIES
What is the Theory of Evolution proposed by Lamarck?
Theory of Evolution of the Acquired Characters
Remains of living beings that have been petrified that give scientist information about how species changed along the years
Fossils
Who evolves? Individuals or Populations
Populations
Variation among individuals in a population
Diversity
Why do a fox and a wolf look so similar?
Because the wolf and the fox have a common ancestor close in time.
What theory proposed that living beings do not change?
Fixism
Fossils that shows intermediated features from its ancestor and the descendent species
Transitional Fossils
Natural Selection occurs when this three events/things happened
Variation into a population
Competition for survival
Reproduction
Change in frequency of a character in a population over time
Evolution
Can acquired characteristics such as a "beach" tan or highly developed muscles be inherited?
No, because acquired characters are not hereditary.
What is the Theory of Evolution proposed by Darwin and Wallace?
Theory of Evolution by Natural Selection
Comparing sequences from different species and depending on its similarities or differences scientists can establish relationships and common ancestors.
DNA evidence
How does the peppered moth change the frequency of color over time?
By natural selection
Set of individuals with the same characteristics that can reproduce and have fertile offspring
Species
The arctic fox has white fur. In a population, some foxes are born with dark-colored fur. What is the origin for this phenomenon?
Mutation harmful
What is the problem with Lamarck's Theory of Evolution?
Acquired characters are not inherited
Similar physical features in organisms that share a common ancestor, but the features serve completely different functions.
Homologous structures
What is the origin of variations in a population?
Mutation
Change in the DNA
Mutation
Which Are the following structures homologous organs?
-Leg of a cow and fin of a whale
-The wings of a mosquito and those of an eagle
-The branches of a tree and the leg of a cow
-Leg of a cow and fin of a whale
What did Darwin not know how to explain regarding his Theory of Evolution?
The origin of diversity, that is, how it originates. Today we know that it is due to mutations
Anatomical features fully developed in one group of organisms that are reduced (often in size) and show almost no function in other similar groups.
Vestigial structures
What is the evolutionary mechanism in Darwin and Wallace's Theory of Evolution?
Natural Selection
trait that helps organism be better suited to its environment
Adaptation
In Africa, there is a tribe where women place metal rings on their necks from childhood and add them with the aim of stretching that part of the body.
Will these women have daughters with increasingly longer necks? Justify taking into account Darwin's and Lamarck's theories.
No, because this character acquired during your life is not genetically determined, therefore it is not hereditary.