Bacteria was the first living thing on earth, how did plants come to exsist, and where they hear befor animals

Question

Bacteria was the first living thing on earth, how did plants come to exsist, and where they hear befor animals

Answer 1

Plants came to existence when a cyanobacterium formed a symbiosis relationship with a eukaryotic cell.

Plants came before the animals, because plants are producers.

Answer 2

Aliens brought all that stuff over. and then they put us on here

Answer 3

Animals diverged into their own kingdom before they became terrestrial so have no connection with the later emerging plant kingdom. Evidence for marine animals begins with fossils dating back 600 million years ago (mya) in the early Paleozoic. The majority of animal fossils come later with the Cambrian period (~525 mya) because the organisms had hard body parts that fossilized better than soft tissue. Nearly 30 groups from this period survive including arthropods, echinoderms (sea urchins and starfish), mollusks (snails, clams), and chordates (the group we belong to). Organisms that photosynthesized were still algae and they belong to the Protista Kingdom.

Animals diverged into their own kingdom before they became terrestrial so have no connection with the emerging plant kingdom. Evidence for marine animals begins with fossils dating back 600 million years ago (mya) in the early Paleozoic. The majority of animal fossils come later with the Cambrian period (~525 mya) because the organisms had hard body parts that fossilized better than soft tissue. Nearly 30 groups from this period survive including arthropods, echinoderms (sea urchins and starfish), mollusks (snails, clams), and chordates (the group we belong to). Organisms that photosynthesized were still algae.

http://www.palaeos.com/Paleozoic/Cambria...

http://www.devoniantimes.org/opportunity...

Protista

http://tolweb.org/tree/phylogeny.html

Timeline

http://en.wikipedia.org/wiki/Timeline_of...

The plant kingdom arose from the algal organisms that made the transition to land. As plants are defined today the Bryophytes (liverworts, hornworts, and true mosses), with no specialized water conducting cells, are the eldest true terrestrial species dating back to the Silurian period 425 mya. Plants occupied the land before the animals emerged but after animals evolved in the sea.

Land was slowly occupied by plants as they developed methods of retaining then moving water internally as they competed for space and exposure to light.

The Tetrapods evolved to become terrestrial from lobe-fin fish like Acanthostega. The plants had evolved far enough to offer animals a new food source if it could be reached.

http://www.devoniantimes.org/index.html

http://www.devoniantimes.org/Order/old-o...

Our shared plant/animal common ancestor was a simple eukaryotic organism in the early Protista Kingdom. If you are really interested the endosymbiotic theory covers the rise of the eukarya.

The endosymbiotic theory is based on the idea of cellular communication driving evolution. The archaebacterial and eubacterial cells merged to become the first nucleated cells. That this mergeing symbiosis continued to occur is evidenced by the many organelles such as mitochondria and chloroplast. Both of these have double layers of cell walls and other ancestral features that provide evidence that this process was repeated.

http://users.rcn.com/jkimball.ma.ultrane...

http://www.biology.iupui.edu/biocourses/...

http://www.morris.umn.edu/~goochv/CellBi...

http://www.jstor.org/pss/1309349

Answer 4

The bacteria mixed with microism from the ocean and over the years they combined other bacteria and became plant life.  The fish that where small ate the plant life the birds ate the fish and in there dropping  the seeds thus plants on earth