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What are the three main groups of ocean life?

Three main groups of ocean life are plankton, nekton, and benthos. Plankton float in the water.

What are the 3 marine lifestyles?

The three basic lifestyles are Plankton, Nekton, and Benthos. Plankton: These organisms float along the ocean or are very poor swimmers.

What are the three categories of ocean organisms How do the organisms in each group move?

The three categories of ocean organisms are the plankton, nekton, and benthos. Planktons are wanderers such as copepods, crustaceans, and algae plankton. They are tiny microorganisms that float in the water. Nektons are animals that move and swim independently.

What are the types of ocean?

Historically, there are four named oceans: the Atlantic, Pacific, Indian, and Arctic. However, most countries – including the United States – now recognize the Southern (Antarctic) as the fifth ocean. The Pacific, Atlantic, and Indian are the most commonly known.

Why is Pacific Ocean so dark?

Pure ocean water lying far away from coasts beyond continental shelf looks darker than the costal water that has several constituents. This is so because colour of pure water is decided by Rayleigh scattering that makes it blue. Coastal waters have phytoplankton, suspended sediments and yellow organic dissolved matter.

What is the 2nd largest sea in the world?

Atlantic Ocean

Which is the largest sea on Earth?

Pacific Ocean

What is the biggest sea creature in the world?

blue whale

What is the scariest creature in the ocean?

  • “Ghost Fish”
  • Vampire Squid.
  • Eerie Anglerfish.
  • Giant Crustaceans.
  • Monstrous Megamouth Shark. (Image credit: NOAA)
  • The Blackdragon Fish. (Image credit: Dr.
  • Skeletal Jellyfish. (Image credit: NOAA Ocean Explorer)
  • Creepy Crawly: Giant Isopod. (Image credit: NOAA OCEAN EXPLORER | OER)

Is Blue Whale bigger than Megalodon?

When it comes to size, the blue whale dwarfs even the largest megalodon estimates. It’s believed blue whales can reach a maximum length of 110 feet (34 meters) and weigh up to 200 tons (400,000 pounds!).

Who would win a megalodon or a killer whale?

While one on one a megalodon is completely superior to an orca, the orca pod hunts and fights on cooperation. The orcas will simply ram the megalodon on gills and circulate around it on three dimensions. Orcas are far more agile than megalodons, and the fish needs to concentrate on several enemies at one time.

What killed the Megalodon?

Extinction of a mega shark The cooling of the planet may have contributed to the extinction of the megalodon in a number of ways. As the adult sharks were dependent on tropical waters, the drop in ocean temperatures likely resulted in a significant loss of habitat.

Can a Megalodon kill a blue whale?

Megalodon was potentially capable of taking on Blue Whales, but it is doubtful they’d go for something so large and tedious to kill, especially something 40 feet longer and far heavier, sort of like a lion going after an elephant. Besides, there was probably far better, far smaller whales to eat.

What animal could kill a Megalodon?

There are many animals that could beat megalodon. Some say megalodon ate Livyatan but it was an ambush predator and Livyatan might have eaten it too. The modern sperm whale, fin whale, blue whale, Sei whale, Triassic kraken, pliosaurus and colossal squid could all beat the megalodon.

What preyed on Megalodon?

Megalodon was an apex predator, or top carnivore, in the marine environments it inhabited (see also keystone species). It preyed upon fish, baleen whales, toothed whales (such as ancestral forms of modern sperm whales, dolphins, and killer whales), sirenians (such as dugongs and manatees), and seals.

What animal would kill a Megalodon?

great white shark

Which was bigger mosasaurus or Megalodon?

People always say it’s 20.4 meters, but in reality it’s around 18 meters and weigh 50, not 100 tons. But according to a new study, it was smaller. So It was around 14.2-15.3 meters long, and possibly weighing 30 tons. Mosasaurus was longer than Megalodon so yeah.

Can a Spinosaurus kill a Megalodon?

Recently the spinosaurus was found to have a crocodile/tadpole like tail. This would make it a much more efficient swimmer than first thought. Spinosaurus pros: more agile and had claws, would beat megalodon on land lol, great swimmer, hunted large swordfish almost as big as the meg.

What animal killed the most humans?

Mosquitoes

What killed the most humans in history?

Wars and armed conflicts

Event Lowest estimate Highest estimate
Muslim conquests in the Indian subcontinent 60,000,000 400,000,000
World War II 60,000,000 120,000,000
Mongol conquests 20,000,000 57,000,000
Taiping Rebellion 10,000,000 100,000,000