Drifting

The pieces of evidence Alfred Wegener used to support his theory about continental drift were; Puzzle Fit, Fossil evidence from animals that were once on the same continent, geologic evidence like mountain chains that were connected and now split apart, and ice sheets. Thank you for reading this article and I hoped it answered your question!

There were four peices of evidence:

1. He noticed that the some of the continents fit together like a puzzle.

2. He found the same fossils in both continents, this is only possible if they were once touching each other.

3. There were the same kind of mountains in canada and Europe, the only way this is possible is if the two plates once collided.

4. 250 million years ago there were ice sheets in southern Africa, India, and Australia and this is only possible if they once touched Antartica.

Genetic drift is the spread of specific random variations throughout the gene pool in the absence of specific selection pressures. There's always random variation in the population, but there aren't always changes in the environment for the population to adapt to. So natural selection, in stead of moving the population towards adaptation, might select from that random variation to move 'sideways', as it were, to a state that's equally well-adapted to the environment as what came before, but different. As random variation may produce many variants that are, more or less, equally well-adapted to their environment, the direction of evolution that results is more or less random. Because variations may spread throughout small populations faster than throughout large populations, and because a large gene pool has a stabilizing effect on the spread of variations, small populations drift faster than large populations.

In the 1960s to 70s people began the acceptance of continental drift. This was mainly due to the fact that more data and discoveries took place, these included paleomagnetic studies. This is the studying of the record of the Earth's magnetic field in rocks. These showed that continents had moved large distances and indeed had once been together. These also showed that new crust had formed at mid ocean ridges and had then moved apart. Ridges had been discovered and were shown to spread around the world. Russians also discovered that earthquakes, volcanoes and…. Occurred at mid ocean ridges and deep sea trenches which highlighted plate boundaries. One of the final developments was deep sea drilling which took rock samples that showed that the crust increased in age as they got farther away from the deep sea ridges.

Continental drift refers to the movement of Earth's continents over time due to the shifting of tectonic plates. This theory suggests that continents were once connected into a single landmass called Pangaea and have since drifted apart to their current positions.

If its for online homework and theres an "All of the above" answer its that one fasho

One reason people didn't initially believe Wegener's continental drift theory was the lack of a mechanism to explain how continents could move. The theory was also considered radical and contradicted the established belief that continents were fixed in place. Additionally, Wegener's evidence, while compelling, was not widely accepted at the time due to the limited understanding of plate tectonics.

Genetic drift is more likely to occur in small populations where chance plays a significant role in determining the frequency of alleles. It can also happen in isolated populations or during population bottlenecks where genetic diversity is reduced.

Continental drift is caused by the movement of tectonic plates, which are large pieces of the Earth's lithosphere that float on the semi-fluid asthenosphere below. The heat generated by the Earth's core causes convection currents in the asthenosphere that move the tectonic plates, leading to the gradual movement of continents over millions of years. This process is known as plate tectonics.

Alfred Wegener's theory of continental drift was supported by several pieces of evidence, including the fit of the continents like a jigsaw puzzle, similarities in rock formations and fossils across continents, and matching geological features such as mountain ranges and coastlines. Additionally, Wegener found evidence of past glaciation in regions that are now separated by oceans, suggesting they were once connected.

Alfred Wegener used fossil evidence, geological evidence, paleoclimatic evidence, and the fit of continental coastlines to support his theory of continental drift. By comparing fossils, rock formations, climate patterns, and the alignment of continents like puzzle pieces, Wegener proposed that the continents were once connected in a single supercontinent called Pangaea that drifted apart over time.

When there is low gene flow

When there is no selective pressure

When there is a bottleneck

1. Fit of the continents: The coastlines of continents such as South America and Africa appear to fit together like puzzle pieces.
2. Fossil evidence: Similar fossils of plants and animals have been found on continents that are now widely separated by oceans.
3. Geological features: Matching rock formations and mountain ranges across different continents suggest they were once connected.

An iceberg is a large piece of ice that breaks off from an ice shelf and drifts in the ocean. They can vary in size from small chunks to massive blocks of ice.

The continental drift is important because we get to understand more about the structure of the earth and understand how it became to be what it's today. Because without it we wouldn't understand why the lands split apart and became seperate continents.

Genetic drift is the random change in allele frequencies within a population due to chance events, leading to a loss of genetic diversity. Gene flow, on the other hand, is the movement of genes between populations due to individuals migrating and interbreeding, increasing genetic diversity. Both processes can impact genetic variation within populations, but genetic drift is more influenced by random events, while gene flow depends on migration patterns.

allele frequencies change randomly each generation

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small populations where random events can have a significant impact on allele frequencies over time.

Continental drift can affect living organisms by changing their habitats as landmasses move over time. This movement can lead to the isolation or mixing of populations, influencing genetic diversity and evolution. It can also create new opportunities for species to adapt to changing environments or migrate to more suitable locations.

Alfred Wegener's hypothesis of continental drift proposed that the Earth's continents were once joined together in a single supercontinent called Pangaea. He suggested that over time, Pangaea broke apart and the continents drifted to their current positions. Wegener supported this theory with evidence like matching coastlines, similar rock formations, and fossil distribution across continents.

Yes, seafloor spreading provided concrete evidence for the theory of continental drift proposed by Alfred Wegener. It demonstrated that new oceanic crust was continuously forming at mid-ocean ridges, pushing the continents apart over time. This supported the idea that continents were once connected and have since moved to their current positions.

The theory is called continental drift, which suggests that Earth's continents were once connected as a single landmass called Pangaea and have since moved apart over millions of years due to plate tectonics. This process is driven by the movement of the Earth's tectonic plates, resulting in the shifting and separation of continents.

Fossils found on different continents that were once connected support the idea of continental drift. The similarities in fossilized plants and animals found on separate continents suggest these landmasses were once part of the same supercontinent. This evidence helps corroborate the hypothesis of continental drift proposed by Alfred Wegener.

To create a 3D model showing the movement of continental drift, you can use software like Blender or SketchUp to design the continents as separate objects. Then, you can animate these objects by keyframing their positions over time to illustrate the movement of the continents due to drift. Additionally, you can use texturing or shading to indicate different time periods or geological features.

Alfred Wegener's support of continental drift was known as the theory of "continental drift," which proposed that the continents were once joined together as a single supercontinent called Pangaea and have since drifted apart.