Evolution & Classification

Flashcard
•
Biology
•
9th - 10th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the fossil record?
Back
The fossil record is the history of life on Earth as documented by fossils, which are the preserved remains or traces of organisms from the past. It provides evidence for evolution and helps scientists understand the changes in species over time.
2.
FLASHCARD QUESTION
Front
What is the genetic basis of change?
Back
The genetic basis of change refers to the role of DNA and genetic mutations in the process of evolution. It explains how traits are inherited and how variations can lead to adaptations in populations.
3.
FLASHCARD QUESTION
Front
What is geographic isolation?
Back
Geographic isolation occurs when a physical barrier, such as a river or mountain, separates populations of a species, preventing them from interbreeding and leading to the potential formation of new species.
4.
FLASHCARD QUESTION
Front
What is natural selection?
Back
Natural selection is the process by which organisms better adapted to their environment tend to survive and produce more offspring. It is a key mechanism of evolution.
5.
FLASHCARD QUESTION
Front
What is punctuated equilibrium?
Back
Punctuated equilibrium is a theory in evolutionary biology that suggests that species experience long periods of stability interrupted by short periods of rapid change, leading to the evolution of new species.
6.
FLASHCARD QUESTION
Front
What is adaptation?
Back
Adaptation is a trait that enhances an organism's ability to survive and reproduce in its environment. It can be structural, behavioral, or physiological.
7.
FLASHCARD QUESTION
Front
What is reproductive isolation?
Back
Reproductive isolation is a mechanism that prevents different species from interbreeding, which can occur through various barriers such as temporal, behavioral, or mechanical differences.
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