Adaptation
What two type of Adaptations are there?
Structural & Behavioural
What two types of Selections are there?
Natural & Artificial
True or False - Descent with Modification is the concept of species possessing favourable adaptations
That Is True
Who is Charles Darwin?
He was the first person to publish a book about the evolution of species. Sailed from 1831-1836 to America and Galapagos, containing some species that cannot be found anywhere else in the world. Writing a book during this process gave his idea, on how can species change over time.
What is an example of a behaviour strongly influenced by genetics?
What Is Adaptation?
Alteration or Adjustment, instructive or habits, often hereditary, by which a species or individual improves its condition In relation to the environments.
Who based their theory off of natural selection?
Charles Darwin
What is Decent With Modification?
Later species are derived from earlier species following changes in structure or behaviour (Adaptations) required for survival.
What Did Darwin Base His Theory On?
Traits are often heritable. In living organisms, many characteristics are inherited, or passed from parent to offspring. Darwin knew this was the case, even though he did not know that traits were inherited via genes.
How Does Genetic Influence Impact Behaviour?
It’s an instinctive actions like nest-building, migration, and displays that are often inherited and shaped by evolutionary genetics.
What Benefits From Adaptation?
It helps evolve animals behaviour because it offers a survival and reproductive advantages
What Benefits From Natural Selection?
List Four Key Factors Of Descent With Modification
1. Hereditary
2. Time
3. Ancestry
4. Behaviour & Evolution
How Did Darwin View Animal Instincts?
Darwin believed instincts are inherited behaviours that develop gradually over time. He suggested they arise from small, beneficial variations being passed down.
What is a heritable behaviour?
A heritable behaviour is passed from parents To offspring through genes. These behaviours tend to reappear in multiple generations, such as the herding instnict in sheepdogs or web-building in spiders.
Give Four Example of Structural Adaptation
1. Camouflage
2. Webbed Feet
3. Fur/Feathers
4. Predation Defence Option
The ability for humans to be able to chose favourable traits and selectively breed offsprings to process these specific traits for task or reasons.
How Man Illustrations Are Included In Darwin's Book The Origin of Species?
One Illustration showing a picture of a family tree, or descent, also called phylogeny.
How Did Darwin’s Ideas influence modern studies of animal behaviour?
His work laid the foundation for ethology, the scientific study of animal behaviour, by suggesting that behaviour should be studied as an adaptive, evolutionary trait.
How do genes and the environment interact to shape behaviour?
Most behaviours involve both genetic predispositions and environmental experiences. For example, a dog may genetically inherit a strong prey drive, but training and environment determine how that drive is expressed.
1. Communal Living
2. Nocturnally
3. Migration
What are the key differences between Artificial and Natural Selection?
Artificial: Human Benefit, Determined By Humans, Happens Quickly
Natural: Survival in Environment/Reproduction, Determined by Environment, Happens Slowly
Which Case Did Darwin Write About On The Topic of Descent With Modification?
Darwin studied Finches while on his ship. He found the beaks of finches were optimized based on the food offered to them in their environment. Some have thiner smaller beaks to feed on insects and flowers. Some large and tough beaks to fed on seeds, etc.
How did Darwin explain behavioural differences between species on the Galapagos Islands?
What is the gene-behaviour link shown by artificial selection in domesticated animals?
Selective breeding demonstrates that behavioural traits can be genetically controlled, as seen in the selection of foxes for tameness or dogs for retrieving, herding, or guarding behaviours.