P2_Geological Timeline Activity by Mrs. Jill Aller https://padlet.com/mrsjaller/w98ugbup0mrnh7n4 Using the Major Events listed in Table 1, write the major events on your geologic time line with visual/s. Each student will answer the Analysis questions; however, your team will complete their part of the timeline. en-us 2020-09-30 15:51:20 UTC 2025-01-21 01:29:11 UTC hello@padlet.com 1. For how long has there been life on Earth? 2. For what percentage of time has life existed on Earth (round to the nearest whole number). 3. For about how many years of geological time have humans existed on Earth? 4. For about how many years of geological time have the dinosaurs existed on Earth? 5. Did dinosaurs exist at the same time as humans? 6. How do scientists determine when an era begins and when it ends? 7. What is the purpose of making a geological timeline? mrsjaller https://padlet.com/mrsjaller/w98ugbup0mrnh7n4/wish/791853879 2020-09-30 15:51:20 UTC https://padlet.com/mrsjaller/w98ugbup0mrnh7n4/wish/791853879 mrsjaller https://padlet.com/mrsjaller/w98ugbup0mrnh7n4/wish/791860613 2020-09-30 15:52:51 UTC https://padlet.com/mrsjaller/w98ugbup0mrnh7n4/wish/791860613 mrsjaller https://padlet.com/mrsjaller/w98ugbup0mrnh7n4/wish/792139577 2020-09-30 16:54:10 UTC https://padlet.com/mrsjaller/w98ugbup0mrnh7n4/wish/792139577 mrsjaller https://padlet.com/mrsjaller/w98ugbup0mrnh7n4/wish/792141614 2020-09-30 16:54:33 UTC https://padlet.com/mrsjaller/w98ugbup0mrnh7n4/wish/792141614 mrsjaller https://padlet.com/mrsjaller/w98ugbup0mrnh7n4/wish/792142569 2020-09-30 16:54:45 UTC https://padlet.com/mrsjaller/w98ugbup0mrnh7n4/wish/792142569 Yostin Rodriguez https://padlet.com/mrsjaller/w98ugbup0mrnh7n4/wish/792203883 Firts Jawed Fish

400 million years ago.
The first record of the jawed Placodermi is from the Early Devonian, about 400 million years ago. The placoderms flourished for about 60 million years and were almost gone at the end of the Devonian. Nothing is known of their ancestors, who must have existed in the Silurian.





]]> 2020-09-30 17:07:39 UTC https://padlet.com/mrsjaller/w98ugbup0mrnh7n4/wish/792203883 Felipe Iglecias https://padlet.com/mrsjaller/w98ugbup0mrnh7n4/wish/793095722 Start of the age of the dinosaurs]]> 2020-09-30 21:48:12 UTC https://padlet.com/mrsjaller/w98ugbup0mrnh7n4/wish/793095722 Ederson Garcia https://padlet.com/mrsjaller/w98ugbup0mrnh7n4/wish/795213350 first mammals: ]]> 2020-10-01 15:58:13 UTC https://padlet.com/mrsjaller/w98ugbup0mrnh7n4/wish/795213350 Kevyn de leon https://padlet.com/mrsjaller/w98ugbup0mrnh7n4/wish/798162403 2020-10-02 15:59:19 UTC https://padlet.com/mrsjaller/w98ugbup0mrnh7n4/wish/798162403 Hugo Ruiz https://padlet.com/mrsjaller/w98ugbup0mrnh7n4/wish/798216428 Earthworms]]> 2020-10-02 16:12:14 UTC https://padlet.com/mrsjaller/w98ugbup0mrnh7n4/wish/798216428 Kristel Montalvan https://padlet.com/mrsjaller/w98ugbup0mrnh7n4/wish/798222979 2020-10-02 16:13:37 UTC https://padlet.com/mrsjaller/w98ugbup0mrnh7n4/wish/798222979 Anthony Moran https://padlet.com/mrsjaller/w98ugbup0mrnh7n4/wish/798228184 https://youtu.be/2kGHLOuzy88

Homo sapiens, (Latin: “wise man”) the species to which all modern human beings belong. Homo sapiens is one of several species grouped into the genus Homo, but it is the only one that is not extinct. See also human evolution.]]> 2020-10-02 16:14:53 UTC https://padlet.com/mrsjaller/w98ugbup0mrnh7n4/wish/798228184 Karina Pineda https://padlet.com/mrsjaller/w98ugbup0mrnh7n4/wish/798230215 First flowering plants 

]]> 2020-10-02 16:15:23 UTC https://padlet.com/mrsjaller/w98ugbup0mrnh7n4/wish/798230215 Maria Lopez https://padlet.com/mrsjaller/w98ugbup0mrnh7n4/wish/798232845 Dinosaurs extinction.]]> 2020-10-02 16:16:00 UTC https://padlet.com/mrsjaller/w98ugbup0mrnh7n4/wish/798232845 mrsjaller https://padlet.com/mrsjaller/w98ugbup0mrnh7n4/wish/798238491 2020-10-02 16:17:27 UTC https://padlet.com/mrsjaller/w98ugbup0mrnh7n4/wish/798238491 Ricardo De La Cruz rdelacru0053 https://padlet.com/mrsjaller/w98ugbup0mrnh7n4/wish/798246507 2020-10-02 16:19:24 UTC https://padlet.com/mrsjaller/w98ugbup0mrnh7n4/wish/798246507 Yostin Rodriguez https://padlet.com/mrsjaller/w98ugbup0mrnh7n4/wish/798252965 First Charks

The earliest shark-like teeth we have come from an Early Devonian (410-million-year-old) fossil belonging to an ancient fish called Doliodus problematicus. Described as the 'least shark-like shark', it is thought to have risen from within a group of fish known as acanthodians or spiny sharks.


]]> 2020-10-02 16:21:03 UTC https://padlet.com/mrsjaller/w98ugbup0mrnh7n4/wish/798252965 Lisbeth vasquez https://padlet.com/mrsjaller/w98ugbup0mrnh7n4/wish/798256327 Grasses

Poaceae or Gramineae is a large and nearly ubiquitous family of monocotyledonous flowering plants known as grasses. It includes the cereal grasses, bamboos and the grasses of natural grassland and species cultivated in lawns and pasture.]]> 2020-10-02 16:21:53 UTC https://padlet.com/mrsjaller/w98ugbup0mrnh7n4/wish/798256327 Jasser Tercero https://padlet.com/mrsjaller/w98ugbup0mrnh7n4/wish/798320914 Precambrian, period of time extending from about 4.600 billion years ago (the point at which Earth began to form) to the beginning of the Cambrian period, 541 million years ago.The Precambrian represents more than 80 percent of the total geologic record.]]> 2020-10-02 16:38:09 UTC https://padlet.com/mrsjaller/w98ugbup0mrnh7n4/wish/798320914 reynaldo mena https://padlet.com/mrsjaller/w98ugbup0mrnh7n4/wish/803746203 The cyanobacteria and archae of primitive Earth are also referred to as prokaryotes (together with the eubacteria). Prokaryotes are discussed in Chapter 16. Approximately 1.5 billion years ago, in an oxygen-containing atmosphere, the first eukaryotes came into being.]]> 2020-10-05 16:21:13 UTC https://padlet.com/mrsjaller/w98ugbup0mrnh7n4/wish/803746203 mrsjaller https://padlet.com/mrsjaller/w98ugbup0mrnh7n4/wish/803843512 Julia G. ]]> 2020-10-05 16:42:37 UTC https://padlet.com/mrsjaller/w98ugbup0mrnh7n4/wish/803843512 Maria De La Cruz. https://padlet.com/mrsjaller/w98ugbup0mrnh7n4/wish/804001644 A prokaryote is a cellular organism that lacks an envelope-enclosed nucleus.
 But in the three-domain system, based upon molecular analysis, prokaryotes are divided into two domains.

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