Prior to the divergence of animals, it is proposed that a unicellular ancestor, likely resembling modern choanoflagellates, developed the key shared trait of multicellularity. This ancestor is believed to have formed simple colonies, leading to the evolution of more complex multicellular organisms. The development of cell adhesion and signaling mechanisms in these early ancestors laid the foundation for the diverse body plans and functions seen in modern animals.
yes all animals evolved from a "common ancestor" and are still evolvingrelationships between all animals are summarised in "trees of life" that propose possible scenaris of evolution according to available scientific datas.You can visualise on them when divergence occured between animals from a common ancestor
Yes, plants and animals share a common ancestor.
Darwin used a tree as a model for the evolution of animals to represent the divergence of species from a common ancestor. Just as branches on a tree diverge from a common trunk, species evolve and diverge from a common ancestor through natural selection and adaptation. This visual representation helped illustrate the concept of common ancestry and the branching of species over time.
Lamarck proposed that organisms developed new features as a result of a 'inner urge' for improvement and that they passed on these improvements to their young/offspring. He did not accept that animals could become extinct.
Anthropology is the right answer the study of human beings' similarity to and divergence from other animals.
Dogs and wolves have a more recent common ancestor.
multicellular invertebrates
The ancestor of all animals belonged to the kingdom Animalia. This kingdom includes all multicellular eukaryotic organisms that are heterotrophic and typically have specialized tissues and organ systems.
There are a couple of animals that would have a well developed cerebellum. One of these animals is the human.
hippos
hippos
lobe-finned fish