Environmental Studies

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What is the evidence that dinosaurs were endotherms? What is the evidence that they were ... Started by joesmith1212	1 Replies 43 Views	Jul 15, 2018 by emilymalinowski12
Describe bird evolution as known from the fossil record. What will be an ideal ... Started by ts19998	1 Replies 186 Views	Jul 15, 2018 by IRincones
What is the prehistoric overkill hypothesis, and what evidence supports overkill as the reason for ... Started by vicotolentino	1 Replies 113 Views	Jul 15, 2018 by Briannahope
Briefly describe the out of Africa and multiregional views to describe the transition from Homo ... Started by leilurhhh	1 Replies 78 Views	Jul 15, 2018 by ndhahbi
What are prokaryotic organisms? What will be an ideal response?[br][br][b][color=black]Question ... Started by maegan_martin	1 Replies 66 Views	Jul 15, 2018 by jamesnevil303
Where are the Ediacaran fauna found? What will be an ideal ... Started by melly21297	1 Replies 51 Views	Jul 15, 2018 by yasmin
What is an invertebrate? What will be an ideal response?[br][br][b][color=#FA1639]Question ... Started by Jipu 123	3 Replies 44 Views	Jul 15, 2018 by Heffejeff
Describe the evolution of amphibians in the Paleozoic. What will be an ideal ... Started by aabwk4	1 Replies 75 Views	Jul 15, 2018 by jesse.fleming
What were the factors that made it difficult for animals to adapt to land? What will be an ideal ... Started by sammy	1 Replies 120 Views	Jul 15, 2018 by rnehls
What was the importance of the therapsids? What will be an ideal ... Started by saraeharris	1 Replies 51 Views	Jul 15, 2018 by guyanai
What were ichthyosaurs? What adaptations did they have for their locomotion ability? What will be an ... Started by tichca	1 Replies 64 Views	Jul 15, 2018 by sultansheikh
What is the best alternative to the meteorite impact hypothesis for the Cretaceous mass extinction? ... Started by gonzo233	1 Replies 137 Views	Jul 15, 2018 by Sammyo
What was the large size of many Pleistocene mammal species due to? What will be an ideal ... Started by joe	1 Replies 31 Views	Jul 15, 2018 by Perkypinki
By the end of the Permian, small mammal-like reptiles called the ____________________ evolved from ... Started by RRMR	1 Replies 45 Views	Jul 15, 2018 by wuly
The Carboniferous flora in coal-forming swamps was dominated by ____________________ plants. Fill in ... Started by TFauchery	3 Replies 85 Views	Jul 15, 2018 by amandalm
Single-celled animals known as ____________________ were plankton that diversified tremendously ... Started by karateprodigy	1 Replies 112 Views	Jul 15, 2018 by ndhahbi
Many of the large dinosaurs, such as Tyrannosaurus, are known as the ____________________ ... Started by Yi-Chen	1 Replies 35 Views	Jul 15, 2018 by Meganchabluk
The duck-billed dinosaurs were in the ____________________ dinosaur group. Fill in the blank(s) with ... Started by aabwk4	1 Replies 61 Views	Jul 15, 2018 by jharrington11
Mammals that lay eggs are called ____________________ mammals. Fill in the blank(s) with the ... Started by KimWrice	1 Replies 262 Views	Jul 15, 2018 by sylvia
Mammals that give birth to live young that need little or no protection after birth are called ... Started by charchew	1 Replies 86 Views	Jul 15, 2018 by 1_Step_At_ATime
The oldest australopithecines were _________________________. Fill in the blank(s) with the ... Started by luminitza	1 Replies 85 Views	Jul 15, 2018 by cloud
Homo sapiens clearly evolved from ____________________. Fill in the blank(s) with the appropriate ... Started by itsmyluck	1 Replies 60 Views	Jul 15, 2018 by ms_sulzle
The most recent ancestor of modern humans that evolved about 35,000 years ago is ... Started by @Brianna17	3 Replies 231 Views	Jul 15, 2018 by recede
Mass extinctions at the end of the Ordovician occurred because of: a. dramatic changes in oceans ... Started by rosent76	1 Replies 85 Views	Jul 15, 2018 by dellikani2015
The first jawed fish were the:a. placoderms. b. acanthodians. c. ostracoderms. d. ... Started by tth	1 Replies 29 Views	Jul 15, 2018 by bimper21