0
Invertebrates first appeared on Earth over 550 million years ago during the Ediacaran period. These early invertebrates were simple organisms without backbones and laid the foundation for the diverse array of invertebrate species that exist today.
Add your answer:
Earn +20 pts
How do people get minerals from Earth's crust?
First, you need to prospect it, than you need to mine for it. Minerals can appear in caves.
What are living things without a backbone?
Living things without a backbone are classified as invertebrates. This group includes a wide range of organisms such as insects, worms, jellyfish, and mollusks. Invertebrates make up the majority of animal species on Earth.
When did stromatolites first appear on Earth?
Stromatolites first appeared on Earth around 3.5 billion years ago. These structures are formed by the activity of microbial communities, primarily cyanobacteria, and are some of the earliest known evidence of life on our planet.
When did the first cells appear on earth?
The first cells appeared on Earth approximately 3.5 billion years ago during the Archean Eon. These cells are believed to be simple, single-celled prokaryotes.
What season does Sagittarius appear highest in the sky at midnight to observers near earths equator?
Sagittarius should appear highest in the sky at midnight right around the First of the Year, and it doesn't matter where on Earth you are.
Is earth worm vertebrates or invertebrates?
INVERTEBRATES!!
Are there more invertebrates or vertebrates on earth?
Approximately 95% of living animals on Earth are invertebrates. So there are more invertebrates.
Is 60 percent of the animals on earth invertebrates?
No, 95-97% of all animals on Earth are Invertebrates.
Are there more vertebrates than invertebrates living on earth?
No, there aren't. Approximately 95% of Earth's creatures are invertebrates.
Where did Arthropods first appear on earth?
yes
When did the first ladybug appear on earth?
Chick or the egg!
What were the first orgisms to appear on earth?
In someones pants??
What were the first creatures to appear on earth?
well the first thing was algae...and formed from there on
What organisms are thought to have been the first to appear on earth?
bacteria
Are ninety-five percent of animals on earth invertebrates?
I do not know if there is an exact percentage, but I do know that the of the known species, the most are invertebrates. This is because bugs are invertebrates. There are so many different species of bigs, just the insects alone, that we cannot find and name them all. Also you have many other groups of invertebrates.
When did first organism appear on earth?
Read your science book chapter . It is on the first page.
When did the first creatures with bones appear on earth?
the animals come on earth because god put them there
