These were the famous species on the Galapagos Islands that Darwin witnessed that must have experienced adaptive radiation because they had many different shapes of a particular trait.
What is Finches and their beaks?
100
This adaptation allows for some organisms to hide in plain sight.
What is camouflage?
100
Human arms and whale fins are examples of this type of structure.
What are homologous structures?
100
Traits that are polygenic are unique compared to typical Mendelian traits because...
What is they have many phenotypes or are controlled by many genes?
100
An observed change over time in the characteristics of organisms is known as:
What is evolution?
200
True or False. Two major principles of Natural selection is that organisms contain variations that are inherited.
True.
200
Recently evolved traits that separate two species that share a common ancestor are called:
What are derived traits?
200
Hawk wings and grasshopper wings allow for sustained
flight but do not share an ancestor. The wing in this case is a:
What is analogous structure?
200
When one extreme version of a trait is favored over all the other phenotypes of a given trait.
What is directional selection?
200
Name a human vestigial structure.
What is appendix, or palmaris longus (tendon in wrist), or muscles around ear, (or maybe even pineal gland?)
300
As this increases, an organism is more likely to have offspring.
What is fitness/reproductive success?
300
This illustration compares amino acid sequences in various kinds of organisms. Which organism is least related to humans based on cytochrome C sequences?
What is the candida?
300
A morphological adaptation in which one species resembles another unrelated species is called ____
What is an analogous structure?
300
This occurs when average traits benefit a population rather than extreme traits.
What is stabilizing selection?
300
Darwin referred to the process of promoting certain traits by breeding members with those traits as ____
What is artificial selection?
400
Each of the different Galapagos Islands had different types of plants. Explain how this would create the differences in beak shapes of finches.
Based on the food each beak was best suited for on that island (insects vs. large nuts) would be the selected trait, because all other traits wouldn't be as favorable.
400
An example of this adaptation is a moth whose wings look like owl eyes.
What is mimicry?
400
Humans can have their appendixes removed with few,
if any harmful effects. That is because the human appendix is considered:
What is a vestigial structure?
400
(Visual Clue) Name the type of natural selection.
What is Directional Selection?
400
When two organisms can reproduce to have a fertile offspring, these two organisms are both:
What is the same species?
500
Describe the similarities and differences between natural selection and evolution.
Evolution is the observed change in organisms over time, and natural selection describes the process by how this change came to be.
500
A trait that has been conserved through time that many organisms within a lineage share is considered:
What is an ancestral trait?
500
Given an example of a homologous structure.
(Answers may vary.)
500
(Visual) Name the type of Natural Selection.
What is Disruptive Selection?
500
When the allele frequencies in a population drop dramatically, usually due to a natural disaster. Reducing genetic diversity in a species.