Insects.
Crustacea Class: Called "crustaceans." These animals have ten legs, four antennae, and two main body sections: cephalothorax and abdomen. Most live underwater. Includes: Crayfish, Water Fleas, Shrimp, and Crabs.
Ants, Butterflies etc
a spider? a mite?
crabs,shrimp
arachnids
insect
Insects.
Gc
Sponges
No, they are not. Vertebrates have vertebra, which are the bones in the spinal column. Arthropods are a group of animals that have no backbone but what's called an exoskeleton. a 'skeleton' outside the body like a shell.No they are invertebrates under the group ArthropodaArthropods are invertebrates
No, they are not. Vertebrates have vertebra, which are the bones in the spinal column. Arthropods are a group of animals that have no backbone but what's called an exoskeleton. a 'skeleton' outside the body like a shell.No they are invertebrates under the group ArthropodaArthropods are invertebrates
This organism would belong to Hexapoda.
The group of invertebrates covers from the simple amoeba, up to complex body shapes such as spiders and scorpions. Your question cannot have a simple answer.
invertebrate
Exoskeleton
7
Barnacles are invertebrates because their shells are outside of their body - they do not have an internal skeleton with a backbone.
Mollusks are all invertebrates because they have no internal skeleton with a backbone. Their shells are outside of their body.
If you mean by main group, vertebrates, because they are invertebrates. But if by main, you mean greatest by number then whether you count them as one celled animals or invertebrates they are much more numerous. They are certainly important to us. Scientists are saying that more than half of the cells in our body are bacteria. If this is so then my little one celled guys are very important to me. What do you mean by main group??