After speciation occurs - Study guides, Class notes & Summaries

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...

BSC 108 Exam 4 | 100% Correct | Verified | 2024 Version 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...

Why is the scientific method bad? - Answer-It is oversimplified, it implies that an experiment can answer a research question. Science isn't linear. It implies science is an independent effort, no creativity or imagination, and it ignores technology and society What is a theory? - Answer-Theories are broad explanations. They are supported by lines o evidence, with no contradictory evidence. Therefore the evolutionary theory isn't just a "theory" Why don't community analysis and feedbac...

SCIN130 Chapter 16 Exam Questions and Answers 100% Pass Which of the following is/are an example(s) of a postzygotic isolating mechanism? - Answer-Hybrid sterility Zygote mortality Two different species attempt to reproduce, but their offspring is unable to undergo proper mitosis because it has two different sets of chromosomes. This type of reproductive barrier is best described as __________ mortality. -Answer-zygote The evolutionary history of a group of organisms is called _____. -An...

BIOL 180 Quiz 2 2023/24 100% CorrectBIOL 180 Quiz 2 2023/24 100% Correct Return to Assessment List Part 1 of 5 - Chapter 2 42.0 Points Question 1 of 33 3.0 Points A bond between two atoms that occurs frequently, but does not require much energy to break is referred to as what? • A. Covalent bond • B. van der Waals Interactions • C. Hydrogen bond • D. Ionic bond Feedback: Great job. Question 2 of 33 3.0 Points What is the smallest component of...

What is thought to be the correct sequence of these events, from earliest to most recent, in the evolution of life on Earth? 1. origin of mitochondria 2. origin of multicellular eukaryotes 3. origin of flowering plants 4. origin of cyanobacteria - Answer-4, 1, 2, 3 All of the following statements correctly describe some part of natural selection, EXCEPT - Answer-Fitness of an organism is directly equivalent to its survival ability On a coral reef in the Florida keys, a population of da...

BIOL 180 Quiz 2 2023/24 100% CorrectBIOL 180 Quiz 2 2023/24 100% Correct Return to Assessment List Part 1 of 5 - Chapter 2 42.0 Points Question 1 of 33 3.0 Points A bond between two atoms that occurs frequently, but does not require much energy to break is referred to as what? • A. Covalent bond • B. van der Waals Interactions • C. Hydrogen bond • D. Ionic bond Feedback: Great job. Question 2 of 33 3.0 Points What is the smallest component of...

Why might Pasteur's experiment be inconclusive? - Answer The swan-necked flask broth may not support cell growth, or the broth was poisoned. Experiment did not confirm hypothesis that all cells come from pre-existing cells Why are replicates important in experiments? - Answer To ensure that results were not achieved by random chance What is the definition of a replicate? - Answer Unit that shares a common thing (4 mice in one cage = 1 replicate) What does the law of succession suggest?...

Compare and contrast the different mechanisms of speciation (allopatric, sympatric, parapatric, peripatric). -Allopatric speciation takes place when populations are geographically isolated. Volcano explodes and populations are divided. -Sympatric occurs without geographic isolation. Occurs through the process of polyploidy: producing individuals with more than two sets of chromosomes. It is a genetic change within a population. -Parapatric speciation is when a new habitat is entered that i...

Why might Pasteur's experiment be inconclusive? - Answer The swan-necked flask broth may not support cell growth, or the broth was poisoned. Experiment did not confirm hypothesis that all cells come from pre-existing cells Why are replicates important in experiments? - Answer To ensure that results were not achieved by random chance What is the definition of a replicate? - Answer Unit that shares a common thing (4 mice in one cage = 1 replicate) What does the law of succession suggest?...