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

Cell Theory - All organisms are made of cells, and all cells come from pre-existing cells. Conclusion: If you trace a cell's lineage back far enough, you will discover that all cells are descended from a common ancestral cell Evolution - The heritable change in a population over time or a change in gene frequency in a population over a number of generations Proximate process - what happens in short term, measured in fractions of lifetimes Ultimate process - longer timeframe (lifeti...

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 ...

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...

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...

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...

How does the fossil record reveal information about evolutionary changes? - Species change over time, and all organisms descended from a single common ancestor. What features make Tiktaalik a transitional fossil, and role do these types of fossils have in the fossil record? - Tiktaalik splits the difference of what you think of as a fish and a limbed animal. These fossils show how organisms evolved from water to land. What can anatomy and DNA reveal about evolution? - DNA shows the amount o...

BIO 509 Exam 2 Study Guide| 100% verified correct What are the 4 types of evidence for evolution? - 1. Fossil record 2. Changes observed during a relatively short period of time 3. Geographic distribution of organisms 4A. Similarities among organisms - signs of evolution preserved in organisms themselves 4B. Vestigial characters 4C. Embryology 4D. Molecular similarities indicate common ancestry How does the fossil record provide evidence for evolution? - A fossil record shows chang...

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...

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 ...

BLG 144 Midterm 1 (2024) Questions With 100%Correct Answers. What is the theory of special creation - - all species are independent -life on earth is young-6000 yrs old -species are immutable typological thinking - based on idea that species are unchanging types and that variations within species are unimportant/misleading great chain of being - Aristotle believed that there's a ladder of nature that orders based on increased size and complexity (humans are at the top) Lamark's theory ...