The Shape of LifeEpisode I
What organism is thought to be the first multi-cellular animal?
The ancient sponge is thought to be the first multi-cellular animal.
How is it the same & different from animals today?
Animals today are much more diverse than sponges. They survive through caring for themselves and finding mates to reproduce. Their means of getting food usually involve moving around and searching for it. They engage in competitions between their own kind as well as other creatures living in that habitat. Sponges are much more difficult to spot. They don't have a particular type of body that distinguishes themselves from other living things. The way they get food does not involve hunting or searching for it. They do not move from place to place in order to seek a better habitat; they adapt to their environment.
How do scientists know it’s an animal?
Scientists can identify animals by its physical appearance and lifestyle.
What evidence do scientists have to prove that other animals evolved from this organism?
They've identified the genes in multi-cellular animals and compared it to that of the sponge. Every multi-cellular animal contained the same blueprint as that of the sponge's.
What more do you want to know?
I want to gain more knowledge concerning the life of a sponge and comprehend it's ways of surviving in the depths of the ocean.
What organism is thought to be the first multi-cellular animal?
The ancient sponge is thought to be the first multi-cellular animal.
How is it the same & different from animals today?
Animals today are much more diverse than sponges. They survive through caring for themselves and finding mates to reproduce. Their means of getting food usually involve moving around and searching for it. They engage in competitions between their own kind as well as other creatures living in that habitat. Sponges are much more difficult to spot. They don't have a particular type of body that distinguishes themselves from other living things. The way they get food does not involve hunting or searching for it. They do not move from place to place in order to seek a better habitat; they adapt to their environment.
How do scientists know it’s an animal?
Scientists can identify animals by its physical appearance and lifestyle.
What evidence do scientists have to prove that other animals evolved from this organism?
They've identified the genes in multi-cellular animals and compared it to that of the sponge. Every multi-cellular animal contained the same blueprint as that of the sponge's.
What more do you want to know?
I want to gain more knowledge concerning the life of a sponge and comprehend it's ways of surviving in the depths of the ocean.
11 comments:
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