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ATS-Science 7
Evolution
Question | Answer |
---|---|
Who is the Father of Evolution? | Charles Darwin |
What did Charles Darwin discover about the finches on the Galapagos Islands that made them different from most finches and why was it different? | That their beaks had adapted according to the food that was available on the islands. |
Variation happens as a result of differences in ______. | genes |
What do you call anatomical features that have similar evolutionary origins and exhibit similar anatomical patterns? (ex:bird wings, human arms, whale flippers, deer forelimbs) | Homologous structures |
What do you call the formation of new species as a result of evolution? | Speciation |
Name the 3 stages of Specification. | 1) Isolation/Separation 2) Adaptation 3) Division |
What is the process by which individuals that are better adapted to their environment survive and reproduce more successfully? | Natural selection |
Natural Selection is also known as ________ __ ___ _______. | Survival of the Fittest |
Describe what Selective Breeding is. | This is the human practice of breeding animals or plants that have certain desired characteristics |
Define Trait. | A genetically determined characteristic. |
What is "Fossil Record?" | It is a historical sequence of life indicated by fossils found in layers of the Earth’s crust. |
How does a Fossil Record organize fossils? | It organizes fossils by their estimated ages and physical similarities. It also provides evidence about the order in which species have existed throughout history. |
What is a Fossil? | It is the remains or physical evidence of an organism preserved by a geologic processes. |
How is a fossil usually formed? | A fossil is usually formed when a dead organism is covered by a layer of sediment. |
Name 4 types of fossils. | -body fossils -Trace -mold -cast |
Define Species. | Species is a group of organisms that are closely related and can mate to produce fertile offspring. |
What is Evolution? | This is the process in which populations gradually change over time. Sometimes new species arise. |
Name 5 ways (or evidence) that are used to support evolution.... | 1) The fossil record 2) Radioactive Dating 3) Anatomical similarities (skeletal structures) 4) Embryological Evidence 5) DNA (chemical evidence) vi. Distribution of organisms |
Define Adaptation. | It is a characteristic that improves an individual’s ability to survive and reproduce in a particular environment. |
Adaptations can be ________ or __________. | physical or behavioral |
What is a Physical Adaptation? | A characteristic or modification in an animal's body that helps it survive in its habita. (Ex. When frogs have green or brown skin to help them blend in w/ leaves or the forest floor; red coloring to warn predators it may be poisonous |
What is a Behavioral Adaptation? | When something adapts itself to find food, protect itself or to reproduce. (Ex. A Snowy Egret will stand still in the water with its wings stretched out, because fish are attracted to the shade) |
Natural Selection has four parts (now supported by genetics). Name the 4 parts. |