What is the fossil record - Study guides, Class notes & Summaries

What are the 2 theories of evolution? Explain each - correct answer 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? - correct answer Lamarck = Inheritance of Acquired characteristics- traits acquired during lifetime could be passed on What is natural selection - correct answer Comptetition for limited resources re...

evolution - change in gene frequency in a population over time mechanism - a way for change to occur natural selection - a process in which individuals that have certain inherited traits tend to survive and reproduce at higher rates than other individuals because of those traits - proposed mechanism for evolutionary change variation is determined by - the environment heredity - passing of traits from parents to offspring reproductive success - successfully passing genes to next generation...

BIOL 102 Final Exam Questions and Answers Latest Update (Graded) Which social insect is identified as the most abundant on earth by Wilson? - ANSWER Ants Wilson argues that biodiversity is enhanced and maintained by which of the following? - ANSWER Trees and branches falling periodically falling in the rain forest Wilson argues that science proceeds when - ANSWER new patterns of thought are applied to old facts allowing scientists to interpret the world in a different matter The volcanic e...

NDSU GEOL 106 EXAM 4 QUESTIONS WITH CORRECT ANSWERS What evidence from the fossil record suggests that birds and some dinosaurs exhibited pair bonding behavior and nurtured their young? - Answer-Found a male raptor sitting on eggs, vegetation was brought to the nest - beaks show signs of wear Why might cynodonts (a mammal-like reptile) be the ancestor to subsequent mammals? - Answer-Jaw bone structure, partly developed secondary palate, and partly differentiated teeth What features of the...

What is biological evolution? - Answer-Heritable change in a population across many generations. What is the difference between microevolution and macroevolution? - Answer-Microevolution is on a small scale. It is a change in a single gene. Macroevolution is on a large scale and results in the formation of a new species. What is a scientific theory (definition)? - Answer-A well-tested concept that explains a wide range of observations. What is catastrophism? - Answer-The idea presented by ...

Lamarck's proposal of evolution - 1. Originally, giraffes had short necks. 2. Giraffes stretched their necks in order to reach food. 3. With continual stretching, most giraffes now have long necks. Darwin's proposal of evolution - 1. Originally, giraffe neck length varied. 2. Struggle to exist causes long-necked giraffes to have the most offspring. 3. Due to natural selection, giraffes now have long necks. Darwin completed a five-year journey around the world on what? And what did he...

Env-201 Exam 2 Questions & Answers 2023/2024 What are fossils? - ANSWER-preserved remains of ancient organisms; evidence of very ancient past life What conditions favor fossil formation? - ANSWER-- special material (amber) - tar pits - frozen env - deserts - covered in bodies of water w/ silt What body parts are msot likely to fossilize? - ANSWER-Bones, exoskeleton, teeth, scales, shells, "hard parts" What is a "living fossil"? - ANSWER-Species first discovered as a fossil ...

Adaptation CORRECT ANSWER Inherited characteristic of an organism that enhances its survival and reproduction in specific environments Natural selection CORRECT ANSWER A process in which organisms with certain inherited characteristics are more likely to survive and reproduce than are organisms with other characteristics. Artificial selection CORRECT ANSWER The selective breeding of domesticated plants and animals to encourage the occurrence of desirable traits Observations of change, f...

Organism - A living entity made up of one or more cells Theory - An explanation for a very general class of phenomena or observations Cell Theory - All organisms are made of cells and all cells come from preexisting cells Null Hypothesis - Specifies what we should observe when the hypothesis being tested isn't correct Control Group - A group that checks for other factors which are not being tested Two components of scientific theories - Pattern and process Population - Individuals of the ...

Lamarck's proposal of evolution Answer> 1. Originally, giraffes had short necks. 2. Giraffes stretched their necks in order to reach food. 3. With continual stretching, most giraffes now have long necks. Darwin's proposal of evolution Answer> 1. Originally, giraffe neck length varied. 2. Struggle to exist causes long-necked giraffes to have the most offspring. 3. Due to natural selection, giraffes now have long necks. Darwin completed a five-year journey around the world on what?...