Allopatric - Study guides, Class notes & Summaries

What is micro-evolution? - Changes in allele frequencies within populations, often associated with adaptation, can be measured from one generation to the next "small changes" What is macro-evolution? - Major changes in the history of life, origin of new species, generates biological diversity "big changes" What is a species? - a group of populations whose members have the potential to interbreed with one another in nature to produce fertile offspring What is allopatric speciation? - ...

Which of the following is a postzygotic isolating mechanism? : Hybrid sterillity The courtship rituals performed by some male birds to attract females of the same species are an example of ___ isolation. : Behavioral Speciation due to geographic barriers separating populations is called ___ speciation. : Allopatric All of the following factors have been implicated in mass extinctions, except: 2 | P a g e A. Continental Drift B. Punctuated Equilibrium C. Meteorite Impact D. Loss of H...

NRES 101 Midterm Exam Questions 2024. T/F: Species diversity increases as you approach the equator - correct answer True What are possible reasons why more species occur near the equator - correct answer - More time without geological disruptions (e.g., glaciers) - More niches - Climatic stability - Greater biological productivity What is speciation - correct answer The formation of two species from one ancestral species What factors lead to speciation - correct answer - natural sel...

In which of the following examples would sepeciation most likely occur? A) Two populations of oak trees begin releasing pollen at different times of the year, one in the spring and the other in the fall B) Unseasonably warm temperatures cause an unusual low pressure zone over the Caribbean leading to a hurricane that eradicates a population of parrots on the island of Saba C) The Fukushima nuclear power plant fails and leaks radioactive water into the ocean causing sterility among an entire p...

AP Biology Exam Questions and Answers Graded A+ What are the 2 theories of evolution? Explain each Gradualism- geologic changes result from slow, gradual, continuous process Punctuated Equilibrium- Long period of stasis punctuated by short bursts of significant change. What was Lamarck's theory and why was it wrong? Lamarck = Inheritance of Acquired characteristics- traits acquired during lifetime could be passed on What is natural selection Comptetition for limited resources re...

Bio 100 Exam 3 (Jaeger UNLV) Questions and Answers 100% Pass **Explain biotic potential.** Most populations can produce more offspring than the environment can support. **Define heritable.** Traits that can be passed on to the next generation. **Describe the concept of evolution of acquired characters.** Over time, an organism can accumulate enough changes that one species may diverge into two, tracing back through ancestral species. **List the five agents of evolution.** Nat...

A certain species of sea otters lives off the coast of Alaska. Some have the ability to tolerate the colder waters farther north while others stay in the central coastal area. As a result of a large oil spill along the northern coast, most of the otters living in those colder waters die. Afterwards, the population of otters, in general, is now less tolerant of cold water. What is this an example of? A.) allopatric speciation B.) hybrid sterility C.) bottleneck effect D.) sympatric specia...

Hierarchical scales of ecology - ANSWER ☑☑Organism, population, community, ecosytem, biosphere Populations - ANSWER ☑☑groups of individuals that belong to the same species and live in the same area Communities - ANSWER ☑☑different populations that live together in a defined area Ecosystems - ANSWER ☑☑All the living and non-living things that interect in an area Biospehere - ANSWER ☑☑the part of Earth where life exists p value for statistical significance? ...

What is microevolution? - The change in allele frequencies that occurs over time within a population. What is macroevolution? - Major evolutionary changes over time, the origin of new types of organisms from previously existing, but different, ancestral types. What is a species? - A group of populations whose members possess similar anatomical characteristics and have the ability to interbreed. What is allopatric speciation? - The formation of a new species in populations that are geographi...

T/F: Species diversity increases as you approach the equator correct answer: True What are possible reasons why more species occur near the equator correct answer: - More time without geological disruptions (e.g., glaciers) - More niches - Climatic stability - Greater biological productivity What is speciation correct answer: The formation of two species from one ancestral species What factors lead to speciation correct answer: - natural selection - sexual selection - genetic d...