Scientific Method
Evolution
Speciation
Phylogenetic Tree
Random 👀
100
This step in the scientific method can have both qualitative and quantitative data.
Observation
100
A change in allele frequencies of a population is caused by
Evolution
100
the evolutionary process by which populations evolve to become distinct species.
Speciation
100
A diagram that depicts the lines of evolutionary descent of different species, organisms, or genes from a common ancestor.
Phylogenetic tree
100
This famous scientist's theory of evolution posits that it was through random variation that some giraffes had longer necks than others.
Charles Darwin
200
A casual explanation of the observation
Hypothesis
200
Heritability and variation in the fitness of traits must exist for evolution to occur by ________.
Natural Selection
200
areas where genetically distinct populations meet, mate, and leave offspring of mixed ancestry.
hybrid zones.
200
The points at the ends of branches which represent sequences or hypothetical sequences at various points in evolutionary history.
Node
200
This mechanism of evolution defines the transfer of genetic material from one population to another.
Gene Flow
300
A mathematically supported and universally accepted observation that allows predictions
Law
300
Similarities in the genome and molecular phylogenies suggest that we are all related to each other through the theory of _____________
Common Descent
300
This species concept distinguishes two organisms based on their ability to interbreed in nature and produce viable offspring.
Biological Species Concept
300
A phylogenetic tree whose branch lengths are proportional to time
Chronogram
300
A population that is independently evolving and has its own shared derived characters can be mapped out through this species concept.
Phylogenetic species concept.
400
A hypothesis or set of related hypotheses supported by multiple tests of multiple predictions
Theory
400
This mechanism of evolution causes a change in the frequency of an existing gene variant in the population due to random chance.
Genetic Drift.
400
A scientist in Egypt is trying to analyze 500k-year-old fossils to identify if they are different. Which species concept will be the most helpful to quickly generate results?
Morphological species concept
400
Species D and E
400
Embryos of different species having the same structure provides support for which prediction of the theory of common descent
species are related, not independent.
500
The phrase " If E. Coli is attracted to brighter surfaces, then they have an excess number of photoreceptors than other bacteria" best reflects to which step in the scientific method
Hypothesis
500
This type of variation in genes displays a subtle qualitative variation between individuals.
Continuous
500
A population of deer is separated by a gradual formation of a river. This separation of species is considered a part of ______________.
Allopatric speciation.
500
Are dragonflies more closely related to Cockroaches than crickets?
False
500
The cause of genetic drift is known in statistics as _________.
Sampling Error