first suggested that the continents fit together like a jigsaw puzzle and can be pieced together by looking at a map. He named this supercontinent Pangaea‚ meaning “all land” and suggested that it was surrounded by a supersea‚ Panthalassa and in the Mesozoic period‚ Pangaea began to split into separate continents. (Alfred Wegener‚ 2012) In the late Triassic‚ Pangaea split into two mega continents‚ Laurasia and Gondwanaland. In present today‚ part of Pangaea lies in the Northern Hemisphere and includes
Premium Plate tectonics
Alaska is home to one of the most beautiful and tallest mountains in North America. Denali‚ previously known as Mt. Mckinley is the tallest peak in North America standing at 20‚320 feet(Denali). In relation to plate tectonics‚ the Pacific plate has been subducting underneath for millions of years. Therefore‚ causing land surfaces in Alaska to continually compress and fold. Due to the tectonic movement‚ this causes the mountain to be shifting upward. Denali is also surrounded by many glacier-clad
Premium Plate tectonics Basalt Igneous rock
lives. The kind of living environments each need. (Cages) The food each reptile require for their diets. The sizes can each of them become as adults? • Most important‚ the cost to care for each of them is it a good fit for your family. Thai Water Dragon Iguana It is always good to research any pet you buy; doing the research on these will help you make the best decision for the pet and your family. Each reptile has certain requirements for the cage that they live in. Both come from places
Premium Tank Sunlight Humidity
1. Before you read‚ decide which of three explanations for the extinction of the dinosaurs you like best. Write an explanation of why you like it. Sex: Testes function only in a narrow range of temperature. (Those of mammals hang externally in a scrotal sac because internal body temperatures are too high for their proper function.) A worldwide rise in temperature at the close of the Cretaceous period caused the testes of dinosaurs to stop functioning and led to their extinction by sterilization
Premium Dinosaur Cretaceous
Copper and Molybdenum Deposits in the United States Copper and molybdenum resources were not recognized as valuable commodities until economic needs demanded the collection and processing of these minerals in large amounts. The most expansive deposits of copper and molybdenum occur in massive low grade ores and are found in intrusive porphyry formations‚ although many smaller sized but higher grade ores are located in non-porphyry areas. The nation has abundant domestic copper ore reserves but
Premium Copper Iron United States
which caused the bats to die and the insect population flourished because the bats main job was to eat the insects. Birds Several bird species are declining. Some of the most endangered birds live in MA Reptiles Most vulnerable in MA. Move annually through open roads and fragmentation. Reptiles require an un-fragmented environment. Amphibians and fish Four stages: Egg Larva Juvenile Adult Long term protection of these are of high importance. **Indicator species= amphibians** (more likely
Premium Extinction Habitat fragmentation Biodiversity
Precambrian Period – The beginning of life Our planet formed from a cloud of dust and gas some 4.56 billion years ago. The Earth’s vast history is divided in four major eras: the Precambrian‚ the Paleozoic‚ the Mesozoic and the Cenozoic. The Precambrian era covers most of our planet’s history and lasted from Earth’s inception until 542 million years ago. It was during this era that the Earth became solid‚ the atmosphere became breathable and life emerged. There is little evidence about the events
Premium Earth Solar System Planet
duplication of the ZPA in the forelimb and horneotic transfonnation of axial structures. CeN 78: 589-601. 8 7 Cogger & Zweifel (1998)‚ pp. 60–68. 9 8 Galis‚ F.‚ G.P Wagner and E.L Jockusch. 2003. Why is limb regeneration possible in amphibians but not in reptiles‚ birds and mammals? Evolution and Development 5:2‚ 208-220. 10 9 Ghosh‚ S.‚ Thorogood‚ P. & Ferretti‚ P. Regenerative capability of upper and lower jaws in the newt. Int. J. Dev. Biol. 38‚ 479–490 (1994). 11 10 Gardiner‚ D. M.‚ B. Blumberg‚ Y. Komine
Premium Developmental biology Cellular differentiation
Hoping; Not Just for Cruise liners Unfortunately there is great debate in how Platyrrhine monkeys came to inhabit the America’s or for what reason. Seeing how South America at that time was quite isolated after it’s separation from Africa during the Mesozoic era and the earliest fossil record indicate the first primates were not found there until the late Oligocene ephoch‚ this left many to theorize about how they may have reached such a secluded land. One theory by scientist is that the primates rafted
Premium Ocean Primate Climate change
Characteristics of a lizard‚ the ancestry to the modern lizard‚ the circulatory and respiratory system and what aspirations the lizard has gone through to be the survivor it is today. [good introduction!]ü Characteristics Lizards are cold blooded reptiles. They cannot make their own body heat so they spend the majority of their time in the sun staying warm. Most lizards have jaws with teeth they also have teeth on the roof of their mouth. Lizards have dry‚ scaly skin. They have four legs‚
Premium Animal Species