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Arthropods invaded land about 100 million years before vertebrates. this fact most clearly implies that ________. arthropods invaded land about 100 million years before vertebrates. this fact most clearly implies that ________. arthropods evolved before vertebrates did extant terrestrial arthropods are better adapted to terrestrial life than are extant terrestrial vertebrates vertebrates evolved from arthropods arthropods have had more time to coevolve with land plants than have vertebrates

Respuesta :

The fact above clearly indicates that the arthropods have had more time to co-evolve with land plants than have vertebrates. Arthropods are invertebrates organisms having an exoskeleton, a paired jointed appendages and a segmented body. They include animals such as lobsters, crabs, spiders, mites, millipedes, centipedes among others. They are protosomes which means their mouth is formed from the blastopore during embryonic development.
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Arthropods invaded land about 100 million years before vertebrates. This fact most clearly implies that arthropods have had more time to coevolve with land plants than have vertebrates.

Further Explanation

Arthropod belongs to a member of phylum Arthropoda. They are the biggest in the animal kingdom and some of them include crabs, spiders, mites, centipedes and many more.

They are invertebrate animals with an exoskeleton (they have an external skeleton that provides support for their body). Their body is segmented and they also possess jointed appendages. They are commonly known for their jointed limbs. They can as well be found in all habitats on earth.

Some arthropods live in aquatic environments while several of them also live in a terrestrial environment.

Some of their characteristics include:

  • Their cells lack a cell wall
  • They possess the ability to move from one place to another at some particular phases of their life
  • They have compound eyes and they can easily recognize the direction of light
  • They have a nervous system that looks like a ladder
  • Their respiratory and excretory systems differ and it also depends on the environment they reside and the subphylum they are part of.

Arthropods play a significant role in the human food supply and some of them also spread diseases to crops and humans.

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KEYWORDS:

  • arthropods
  • 100 million years
  • terrestrial arthropods
  • adaptation
  • environment
  • invertebrate animals

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