Fitness of organisms - Study guides, Class notes & Summaries

Biol 1001 - Midterm 1 Questions and Answers Graded A+ 1. **What defines an organism?** - An organism is a living entity composed of cells. 2. **What are the five key characteristics of living organisms?** - The five key characteristics are: having cells, the ability to replicate, undergoing evolution, possessing genetic information, and utilizing energy. 3. **How is a theory defined in a scientific context?** - A theory is an explanation for observations that is supported by s...

NR 602 Exam 1 Questions and Answers Already Passed What was the primary cause behind Darwin's finches developing into different subspecies? (a) Droughts (b) Competition for resources (c) Different microclimates of each island (d) Selective mating (e) None of the above C) Each kind of finch has a different beak because natural selection has selected for the beak that optimizes the most abundant food source in the particular climate that the specific birds live in. Because each of ...

Bio 182 Final Exam Latest Update Graded A+ abiotic components air, water, and non-living parts of soil age-specific fecundity the average number of female offspring produced by a female in a given age-class altruism behavior that has a fitness cost to the individual exhibiting it and a fitness benefit to the recipient, appears to contradict this pattern (queen bees giving themselves up for the queen to reproduce) asymmetric competition one species suffers a much greater fitness...

Bio 182 Exam 2 ASU Latest Version Graded A+ abiotic physical conditions adaptive plasticity one genotype has multiple phenotypes & environments trigger change allopatry populations occur in different places biological species group of potentially interbreeding species biotic other organisms Cladistics Grouping is based on common ancestry Do enzymes maintain a rigid structure while catalyzing? No it is constantly changing Do smaller or larger populations have more chanc...

Ecology - correct answer Study of organisms and how they interact with their organic and inorganic environment; strives to understand distribution and abundance of organisms. Examples of what ecology is and isn't - correct answer Is: -Succession -Climate Change -Darwin's Finches -Natural Selection -Thermodynamics -Optimal Foraging -Fitness Isn't: -"Tree hugging" Yes and No: -Saving the whales -Going green -Wildfire -Jurassic Period -DNA History of ecology - cor...

Science - Answer-recognizing patterns in the natural world and understanding the mechanisms that give rise to those patterns The Diversity of Life - Answer-Patterns How plants and animals work - Answer-Mechanisms Evolution - Answer-the change in allele frequencies in a population over time Four Mechanisms of Evolution - Answer-Selection, Genetic Drift, Mutation, and Migration Selection - Answer-changes in allele frequencies due to organisms with advantageous alleles reproducing more succe...

Bio 100 Exam 3 (Jaeger UNLV) Questions and Answers 100% Pass **Evolution is defined as** any change in the phenotype of a population over successive generations due to genetic factors. **Common Descent with Modification entails** species undergoing modifications across generations. These changes can lead to the emergence of new, distinct species. **Species are** various types of organisms. Individuals within the same species share genetic similarities and can potentially interbre...

Aristotle, a philosopher - Answer-Pre-300 BCE -described species as fixed -Scale of nature: arranges species in order of lowest to highest complexity -linear hierarchy Hutton, a geologist - Answer-1795 -proposed gradualism -change is a slow but continuous process Thomas Robert Malthus, an economist - Answer-1798 -published "Essay on the Principle of Population'" -Human population growth is limited by resources; At some point we will reach carrying capacity, -can't grow exponentiall...

Provide examples where evolution is not goal-directed - - Parasites lose complex digestive systems - Finch beaks get larger, then smaller Although N enhances productivity, is too much nitrogen a bad thing? - N runoff can lead to eutrophication, species diversity decreases if organisms thrive in N, N pollution creates acid rain, climate change, depletion of ozone Are non-human animals capable of making decisions that impact their fitness? - No. Cost-benefit...

Parasitology Study of the most common mode of life on earth Parasitology Centered on animal parasites of humans, domestic animals, and wildlife Previous Play Next Rewind 10 seconds Move forward 10 seconds Unmute 0:00 / 0:15 Full screen Brainpower Read More Animal parasites Parasitology is centered on Parasite An organism that lived in or on another organism and either harms the host or lives at the expense of the host Parasitic clams Alter their man...