2. What adaptations does an organism need to fly? Look at the bird skeleton below for ideas.
1. List 3 different animals that can fly (no mechanical support needed).
2. What adaptations does an organism need to fly? Look at the bird skeleton below for ideas. Watch the following video:
http://www.weather.com/series/great-outdoors/video/chile-volcano-eruption-spews-lava-skyward 1. After watching the video of the volcano, what do you think will happen to the birds that live in that area? 2. What do you think will happen to the plant population that lives around the volcano? 1. A reintroduced population of wolves in a national park is 90% grey and 10% black, consistent with the wolf
population in other regions. After several generations in isolation, the national park’s wolf population is 60% grey and 40% black. The wolf population has likely experienced: A. natural selection. B. genetic drift. C. mutations. D. migration. 2. What happens to a species if it is unable to adapt to changes in its environment? Match the examples on the left to the terms on the right.
1. Humans breed dogs a) natural selection 2. Genetic characteristics of a population changes b) evolution 3. Bacteria are not killed by hand sanitizer c) artificial (not natural) selection 4. Camouflage of insect keeps it safe d) resistance 5. More camouflage insects survive and reproduce e) adaptation A population of a shoreline plant has existed for a long period of time under conditions of stable temperature and sea level. Years ago, these plants were tall with very long roots and thin leaves, traits adapted for windy conditions well above the high tide line. Due to global climate change, a significant rise in sea level occurs and persists over multiple plant generations. A group of scientists measures this same population of plants, and finds that they are now on average shorter with much thicker leaves and even longer roots, traits adapted for being submerged at each high tide. Explain the change in the population.
a) The traits in the plant population randomly changed, and would have done so regardless of an increase in rainfall. b) Due to the increased sea level, mutations occurred that led to some of the plants being shorter with thicker leaves, allowing them to withstand submergence at high tide. c) Each plant evolved to become shorter with thicker leaves in order to thrive in this wetter environment. They then passed these traits on to their offspring. d) Shorter plants with thicker leaves that already existed in the population were better able to thrive and generate offspring under the new conditions.
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CategoriesMrs. HusselsteinBiology Warm-Up questions. Please write your answers in the Warm-Up document provided weekly on Google Classroom. |