Mass extinction events - Study guides, Class notes & Summaries

sci 225 exam 2 The three orbital parameters of eccentricity, obliquity, and precession are collectively known as cycles named after this scientist. - correct answer Milutin Milenkovic Name the orbital parameter movement is similar to the movement of a spinning top. - correct answer Precession (Wobble) This orbital parameter changes on a time scale of 41,000 years - correct answer Obliquity (tilt) Interglacial periods seem to align with what amount of tilt of Earth's axis: higher tilt ...

SCI 225 unit 2 examMilutin Milankovic - correct answer The three orbital parameters of eccentricity, obliquity, and precession are collectively known as cycles named after this scientist Precession (Wobble) - correct answer Name the orbital parameter movement is similar to the movement of a spinning top Obliquity (tilt) - correct answer This orbital parameter changes on a time scale of 41,000 years Interglacial periods tend to occur roughly every 100,000 years - correct answer Over the ...

Recognize dragonflies as formidable aerial and aquatic predators - correct answer Dragonflies live in water for the first two years of their life. After this adult dragonflies hunt other flying insects while they are flying themselves; they cannot feed while walking or sitting. Identify dragonflies as ancient insects (when, what, why) - correct answer Carboniferious, meganura, first insects to fly, selection pressures Develop more than one hypothesis for why dragonflies were so big - corre...

100 to 1,000 - ️️Today's global extinction rate is _____ times greater than Earth's background extinction rate. 5 - ️️The fossil record indicates the occurrence of how many mass extinction events? 50 species - ️️If there were 100 million species on Earth, how many species might we reasonably predict to become extinct annually assuming background extinction rates? A nucleus - ️️A prokaryote cell lacks _____. a random change in the genetic makeup of a population - ️️Which...

Which of the follow statements concerning the is NOT correct? a) in the most-recent 550 million years Earth has experienced five mass-extinction events b) approximately 250 million years ago all of the continents were coalesced in a single, giant, super continent c) the first living organisms were Prokaryotes d) oxygen started accumulating in Earth's atmosphere with the invasion of land by plants approximately 400 million years ago ----CORRECT ANSWER------d) oxygen started accumulating ...

BIOCHEM 32A Exam 1 MC 50 Questions and Answers Updated 2024/2025 Solved 100%; University of Notre Dame 1. Georges Cuvier proposed , which directly opposed the idea that Earth’s geological features can be explained by constant, steady mechanisms. A. Gradualism B. Catastrophism C. Uniformitarianism D. Adaptationism Consider the following statement for Questions 2 through 4: In Mendelian genetics, complete dominance is a heterozygous condition where the dominant allele masks any ef...

BIOCHEM 32A Exam 2 MC 50 Questions and Answers Updated 2024/2025 Solved 100%; University of Notre Dame 1. Georges Cuvier proposed , which directly opposed the idea that Earth’s geological features can be explained by constant, steady mechanisms. A. Gradualism B. Catastrophism C. Uniformitarianism D. Adaptationism Consider the following statement for Questions 2 through 4: In Mendelian genetics, complete dominance is a heterozygous condition where the dominant allele masks any ...

Honors Bio Exam Review | Now w/ Photosynthesis Test Exam Questions with 100% Correct Answers Scientists will never know for sure why dinosaurs became extinct. Therefore, scientists should a. to raise live dinosaurs to study. b. the current theory about dinosaur extinction as the best possible theory. c. continue to learn as much as they can about dinosaur extinction. d. stop studying dinosaurs and study only living animals. continue to learn as much as they can about dinosaur extinction...

The origin of mammals occurred in which era? - Answer Triassic Period (252 Ma- 201 Ma) What are some key events that occurred within the Triassic Period? (2 points) - Answer - Pangea supercontinent formed through continental drift. - Therapsida groups had evolved within vertebrates Therapsida groups had increased metabolic rate inferred through: ___________________ (3 points) - Answer - upright posture (relative to reptiles) - muscular diaphragm for enhanced breathing - breathing while ...