Pre cambrian Study guides, Class notes & Summaries

RNA ~ single-stranded nucleic acid that contains the sugar ribose DNA ~ A complex molecule containing the genetic information that makes up the chromosomes. Stromatolites ~ Oldest known fossils formed from many layers of bacteria and sediment. Anthroprocene ~ New era of geological history, defined by humans from their own history greenhouse effect ~ Natural situation in which heat is retained in Earth's atmosphere by carbon dioxide, methane, water vapor, and other gases Titan and ...

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?...

What are Darwin's three conditions for natural selection? 1) Heritable characters 2) Characters show variation between individuals 3) Differential fitness (= survival, reproduction) between individuals What is the definition of evolution? genetic change over time in a population Is all evolution caused by natural selection? no Is natural selection the only consistent force leading to adaptations? yes What types of evidence can be gathered for evolution? Fossil...

Brooks Biodiversity Unit 1 Exam Questions & Correct Answers 2024 Solved 100%. evolution the concept that all given organisms are related to each other though common ancestry Have scientists proven that life exists? No Big Bang Theory of how the universe formed 16-18 billion years ago Symbiosis the interaction between two different organisms living in close association "life coming together" Spontaneous Generation Theory that life arose spontaneously from inanimate matter. Not a wi...

***Chapter 1*** - correct answer The Abyss of Time Precambrian Era - correct answer First major section of geological time. (4.5 billion years - 590 million years ago) Outcrop - correct answer Part of a rock formation that appears above the surface of the surrounding land. Core - correct answer Innermo...

1 BROOKS BIODIVERSITY UNIT 1 EXAM | QUESTIONS & ANSWERS (VERIFIED) | LATEST UPDATE | GRADED A+ evolution Correct Answer: the concept that all given organisms are related to each other though common ancestry Have scientists proven that life exists? Correct Answer: No Big Bang Correct Answer: Theory of how the universe formed 16-18 billion years ago Symbiosis Correct Answer: the interaction between two different organisms living in close association "life coming together" Spo...

EES EXAM #3 Questions and answers, 100% Accurate. Rated A+ Who calculated the age of the Earth as 6000 years old? - -Bishop Ussher Scientist who calculated the age of the Earth based on the salinity of the sea. - -Who was John Joly? How did Lord Kelvin attempt to figure out the age of the Earth? - -He used the cooling rate of Earth. He did not knoe that Earth was not completely cooled. Who discovered radioactive decay? - -Antoine Henri Becquerel The names of all the Eons and the...

Brooks Biodiversity Unit 1 Exam Questions & Correct Answers 2024 Solved 100%. evolution the concept that all given organisms are related to each other though common ancestry Have scientists proven that life exists? No Big Bang Theory of how the universe formed 16-18 billion years ago Symbiosis the interaction between two different organisms living in close association "life coming together" Spontaneous Generation Theory that life arose spontaneously from inanimate matter. Not a wi...

1. population composed of all individuals that belong to the same species and live in a given area at a particular time 2. community incorporates all of the populations of organisms within a given area 3. population ecolo- gy the study of factors that cause populations to increase or decrease 4. population size the total number of individuals within a defined area at a given time 5. population densi- ty 6. population distriu- tion the number of individuals per unit area (or v...

BIOL 211 Exam 1 Stewart Questions with 100% Correct Answers | Latest Version 2024 | Verified What is the goal of bioremediation? - To clean up areas polluted with toxic compounds using bacteria Broad-spectrum antibiotics inhibit the growth of most intestinal bacteria. Consequently, assuming that nothing is done to counter the reduction of intestinal bacteria, a hospital patient who is receiving broadspectrum antibiotics is most likely to become - deficient in certain vitamins and nutrients...