They went from simple colonies of cells (such as some groupings of bacteria) to multicellular creatures with some cell specialisation.
multicellularity ------------------------------------------------ Sponges are simple aggregations of single cells which come together for mutual benefit. If you liquidise a sponge, the cells it is made form will come together again to reform the sponge. Thus sponges (or something like them) were probably the first step in the evolution of multi-cellular organisms.
multicellularity ------------------------------------------------ Sponges are simple aggregations of single cells which come together for mutual benefit. If you liquidise a sponge, the cells it is made form will come together again to reform the sponge. Thus sponges (or something like them) were probably the first step in the evolution of multi-cellular organisms.
Clues can be found out about the evolutionary relationships of animals by studying fossil records.
Yes, plants evolved before animals in the evolutionary timeline.
The behavior of animals and humans can be studied with an evolutionary lens. This allows scientists to determine why certain behaviors were beneficial in evolutionary terms.
In the field of evolutionary biology, animals are considered monophyletic, meaning they all share a common ancestor and form a single evolutionary group.
The evolutionary significance of Cnidarians is that they were the first animals to move. As for Porifera, they were the first animals on Earth.
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during the Prehistoric or the era of the dinosaur was evolutionary history of animals has there been an tendency for maximum body size to increase.
No other animals are believed to have evolved from sponges, thus they win the title of "an evolutionary dead end."
Fungi are most closely related to animals in the evolutionary tree of life. Both fungi and animals are classified under the Opisthokont kingdom, which indicates their shared ancestry and evolutionary history.
lobe-finned fish