What is a cladogram?
Semester 1 Exam 2024 (Part 2 of 3)

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Science
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9th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
A cladogram is a diagram that shows the evolutionary relationships among various biological species based on similarities and differences in their physical or genetic characteristics.
2.
FLASHCARD QUESTION
Front
What does it mean when species are described as 'least related' in a cladogram?
Back
It means that the species share a more distant common ancestor compared to other species in the cladogram, indicating less genetic similarity.
3.
FLASHCARD QUESTION
Front
What is the significance of genetic variation in a population?
Back
Genetic variation is important for the adaptability and survival of a population, as it allows for a greater range of traits that can be selected for or against by natural selection.
4.
FLASHCARD QUESTION
Front
What is the Founder Effect?
Back
The Founder Effect is an evolutionary phenomenon that occurs when a small group of individuals establishes a new population, leading to reduced genetic diversity compared to the original population.
5.
FLASHCARD QUESTION
Front
How does natural selection influence evolution?
Back
Natural selection is the process by which individuals with favorable traits are more likely to survive and reproduce, leading to the gradual evolution of species over time.
6.
FLASHCARD QUESTION
Front
What is the relationship between body length and eye span in stalk-eyed flies?
Back
Researching this relationship can help determine if changes in eye span are correlated with changes in body length, which may provide insights into evolutionary adaptations.
7.
FLASHCARD QUESTION
Front
What evidence supports the idea that horses evolved over time?
Back
Fossil records and comparative anatomy show gradual changes in horse species, indicating a slow evolutionary process rather than sudden appearances of new species.
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