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My name is Ann [436]
3 years ago
10

Hi im new how this work?

Biology
2 answers:
iren [92.7K]3 years ago
5 0

Answer:

you have questions you ask them

you want to answer question then u get points

photoshop1234 [79]3 years ago
4 0
You ask your question and people come and answer them. You can answer other peoples questions and receive points to level up, you can also receive brainlies answer
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Discuss the orogenies that produced the Appalachian Mountain Range. Include in your answer the timing, process, and resultant se
PtichkaEL [24]

Answer:

Explanation:

Appalachian orogenic belt, an old mountain range that extends for more than 3,000 km (1,860 miles) along the eastern margin of North America from Alabama in the southern United States to Newfoundland, Canada, in the north. The geosynclinal theory of mountain building was first worked out in the Appalachians by James Dana and James Hall in the late 19th century; today a plate tectonic theory is invoked. The earliest Appalachian sediments were deposited near the start of the Cambrian Period (542 million years ago) on the shores of the opening Iapetus Ocean. Subduction of the Iapetus led to its destruction and the collision of different continental blocks and island arcs. Those collisions gave rise to three Appalachian orogenies: the Taconic in the Middle Ordovician (about 472 million years ago); the Acadian in the Middle to Late Devonian (at 390 million to 370 million years); and the Alleghenian in the Late Carboniferous to Permian (300 million to 250 million years ago). The age of these orogenies decreases eastward across the orogenic belt, demonstrating that it was formed by the progressive eastward addition of arcs and continental fragments to the continental margin of North America. The Appalachian belt continues to the east in the form of the Caledonian and Hercynian orogenic belts in western Europe. The Alleghenian orogeny led to the formation of the Pangaea supercontinent during the Permian Period (299 million to 251 million years ago). Geophysical seismic studies show that the southern Appalachian Mountains comprising the Ridge and Valley region, the Blue Ridge Mountains, and the Piedmont region belong to a crustal slab some 6–15 km (3.7 to 9.3 miles) thick that has been thrust 260 km (162 miles) westwards over the former continental margin.

7 0
3 years ago
Why plant dont have specialized respiratory system
marshall27 [118]
Plant respiration<span> is limited by the process of diffusion. They </span><span>take in carbon dioxide through holes on the undersides of their leaves also known as stoma . they do require air but very little</span>
3 0
3 years ago
Help lol!!!!!!!!!!!!
Sergeu [11.5K]

Answer: Beer

Explanation:

It is not able to consume anything. It is a non living item in comparison to the other options

Have a lovely day

5 0
3 years ago
Why are cells generally so small? Select all of the answers that apply.
Dmitry [639]

I would have to say that A is the correct answer.

8 0
3 years ago
Which of these molecules is not a product of the Electron Transport System?
ycow [4]
NAD+is not a product of ETS
3 0
3 years ago
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