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What is the approximate age of the earliest bacterial cells first land plants and first mammals?
Wiki User
∙ 12y ago
The first bacteria are believed to have existed about 3 1/2 billion years ago. The first land plants: about 450 million years ago. And the first animals that walked and set their feet down on land: about 250 million years ago. Mammals may have begun their existence not much after this time, perhaps 225 million years ago, but they did not begin to thrive until about 65 million years ago when it is commonly beleived that a huge asteroid hit the earth and wiped out the dinosaurs, all except their cousins, the birds.
Wiki User
∙ 12y ago
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Do plants have bacterial flagellum?
No
What are herbivorus mammals?
They are mammals that only eat plants.
What organs did the earliest plants have?
roots
What kind of organisms do the earliest fossils represent?
The earliest fossils represent plants.
Is cellulose produced by plants insects or mammals?
Plants
Why does many green plants survive in a world without mammals but mammals cant survive without green plants?
mammals cant survive without green plants , because that is their food and they live off of the plants. Green plant can live without mammals, because they can make their own food with photosynthesis.
Why can green plants survive but mammals could not survive without green plants?
mammals cant survived without green plants because that is their food and that how they live without green plants they will die.
What are the differences between responses of mammals and flowering plants?
In mammals,the response is usually fast but in flowering plants or even plants in general,their response is usually very slow.
Are plants and dogs related?
no plants and dogs are not related dogs are mammals
Are there any herbivore mammals?
yes there are hundreds if not thousnads. A herbivore is something that eats plants. Tons of mammals like deer eat plants.
Do mammals bury eggs in sandsoil or rotting plants?
Mammals bury their eggs in sandsoil.
What do mammals produce that plants use?
co2
