Genetics
Where do organisms get their genes from?
Their parents
The "Father of Evolution"
Charles Darwin
Who introduced the theory of natural selection?
Charles Darwin
If two organisms have similar DNA it could mean that they evolved from __________
the same organism
Is having short hair a result of your genetics?
No
What is evolution?
Evolution is the process by which populations adapt and change over time due to genetic variation and natural selection.
What does "survival of the fittest" mean?
"Survival of the fittest" refers to the idea that organisms that are best adapted to their environment are more likely to survive, reproduce, and pass on their traits.
There are many differences among humans. However, all humans belong to the same species because they _____________
They can mate with one another to produce fertile offspring
Do all organisms have the same number of genes?
No organisms do not have the same humber of genes. Example: Humans: Around 20,000–25,000 genes. Rice: Around 40,000–50,000 genes
If we are all related, why don't we look alike?
our features are determined by climate and the place we live in.
What is a trait in natural selection? Can you give an example?
Answer:
A trait is a characteristic of an organism that can be inherited and affects its ability to survive and reproduce.
Example: The long neck of a giraffe is a trait that helps it reach food high in trees, giving it an advantage over shorter-necked giraffes.
What is biological classification/taxonomy?
A system that is used to organize all life on Earth.
If a parents loses their leg from a car accident, will their future children be born without a leg?
No
Are all species related somehow?
Yes, all species are related to one another through a common ancestor. This idea is a cornerstone of evolutionary biology, often referred to as the "Tree of Life."
What is variation?
Variation refers to the differences between individuals in a population. These differences can be in traits like size, color, shape, or behavior.
True or False: Classification of organisms helps scientists understand their evolutionary relationships.
True
Approximately how many genes do we have?
20,000 to 25,000
Which evidence supports the theory of evolution?
Natural Selection (Darwin’s Theory) and The Fossil Record
Is natural selection random?
No, It "selects" individuals with advantageous traits that improve survival and reproduction in a given environment.
What are the two parts of the scientific name used to classify animals?
Genus, and species (Binomial Nomenclature)