Islands off the coast of South America contain related but different species of tortoise. Where would these tortoise's most recent common ancestor have lived?
Where is the mainland or on the same island.
100
the ability of an organism to survive and reproduce in its environment
What is fitness
100
homologous structures present in adult and embryonic stages supports the principle of...
What is common descent
100
Occurs when rivers, mountains, or canyons prevent 2 populations from interacting
What is geographic isolation.
100
Scientists used this to establish the time (age of Earth) needed for biological evolution to take place
What is radioactive dating or radiactivity
200
Local species of tortoise develop specific ________ to survive.
What is adaptations.
200
The scientific process that is occuring when humans choose only the juiciest and largest strawberries to breed
What is artificial selection
200
Some members of a population survive compared to others due to more favorable...
What is adaptations
200
type of selection that occurs when organisms with large beaks have much higher rates of fitness than members of the species
What is directional
200
What universal genetic code (central dogma) is present in almost all species?
What is DNA makes RNA makes proteins
300
What is the most likely reason why aquatic mammals and fish have similar adaptations?
What is they share similar habitats.
300
the wings, arms, and flippers of mammals would all be considered this type of structure
What is homologous structure
300
Limited resources, time, and _____ are the raw materials of natural selection
What is heritable variation
300
Type of selection that creates more "average bears" than would normally be expected
What is stabilizing
300
This field of study proposing how traits are passed on was not given by Darwin as evidence when he proposed natural selection
What is Genetics or Heredity
400
Similar habitats in different parts of the globe result in species that are _________ related
What is distantly.
400
Example: hip bone in a dolphin
What is a vestigial structure
400
A few bacteria in a staph infection are extremely resistant to antibiotics. How did they receive this beneficial adaptation?
What is inheritance or a mutation.
400
the independent movement of chromosomes during anaphase as well as ______ during prophase (of Meiosis) allow for genetic recombination
What is crossing over
400
Species with extremely different molecular profiles would be very unlikely to share....
What is a RECENT common ancestor
500
Two species share embryological patterns. Would it be reasonable to say that one evolved from the other?
No: they both evolved from a common ancestor.
500
Genetics term that natural selection actually acts on
What is phenotype.
500
Who lived furthest in the past: gorillas, monkeys, or a common ancestor between humans and gorillas?
What is the common ancestor.
500
Two hippies who haven't cut their hair since the 70's have a child who is born with very little hair. Lamarck would be upset at this because ________ traits or characteristics were not inherited
What is Acquired.
500
Similar structures in related species (although not necessarily similar functions) would most resemble each other during what stage of life?