Happy
Studying
Marine
Biology
Students
100
What is an adaptation?
Any inherited characteristic that increases an organisms chance of survival
100
True or false : populations evolve, not individuals.
True
100
A term for the passing of a physical traits of organisms in the same species
heredity or inheritance of traits
100
what is evolution?
the change in the characteristics of a species over several generations and relies on the process of natural selection.
100
Are mutations random?
Yes
200
What is an offspring?
Babies!!!
200
Explain which mouse is better adapted to this environment.
The grey mouse is better adapted to this environment. Its fur color blends in with the environment and therefore is not seen by predators.
200
A term used to describe differences among physical traits organisms in the same species
Variation
200
What is a population?
A species that lives and inbreeds within a specific area
200
In an arctic habitat; are white foxes or grey foxes more likely to survive and why?
White foxes are more likely to survive becase their white coats help them blend into the snow
300
Traits must be heritable for natural selection to occur: True or False
True
300
What makes a species a species ? List 3 things
Interbreed
Live in a similar habitat
Distinct Characteristics / DNA/ Traits
300
Fill in the blank: Organisms with traits that _____ their chances of surviving and reproducing in their environment tend to leave more offspring
Increase
300
How is embryology proof of evolution?
Many organisms of different species look similar during early stages of development.
300
What is speciation ?
when a group within a species separates from other members of its species and develops its own unique characteristics.
400
In an environment with food that grows on trees; are animals with long legs more likely to survive than animals with short legs and why?
Yes, animals with long legs, necks or any trait that makes them taller will be more likely to survive because they have easier access to food.
400
Does natural selection act on an organisms phenotype or genotype?
Phenotype
400
Fill in the blank: Natural selection over many generations causes ______
Evolution
400
What is a vestigial trait?
Traits that organisms still have but no longer need which is a piece of evidence for evolution.
400
What are the 3 key ideas of Natural Selection/Charles Darwin
Variation, Competition and Inheritance of Traits (characteristics are passed down from parent to offspring)
500
What was Lamarck, what was his Theory?
Proposed that an organisms could pass on traits that it is acquired during its lifetime to its offspring
500
How do environmental factors contribute to evolution by natural selection?
A change in the environment can affect and organisms ability to survive and may lead to natural selection
Ex. The drought changed the seed available for the finches and thus the bigger birds had a better chance at surviving
500
analogous traits VS homologous traits ?
Analogous: Traits that serve a similar function but different structure
Homologous: Traits that serve different function but similar structures providing evidence that are inherited from common ancestors
500
What causes speciation to occur ?
Reproductive isolation / barriers which inhibits organisms from interbreeding. Thus, causing the species to diverge
500
There are several pieces of evidence that support the Theory of Evolution.
LIST 4
Fossil record, homologous body structure, vestigial organs, embryology, DNA