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Do lizards have spinal cords?
As in all vertebrates, the nervous system of reptiles consists of a brain, a spinal nerve cord, nerves running from the brain or spinal cord, and sense organs. When compared with mammals, reptiles have proportionately smaller brains.
Do reptiles have a secondary palate?
Most reptiles have little in the way of a secondary palate. It is best developed in species that lack cranial kinesis (movement of the snout relative to the braincase). Some aquatic turtles and crocodilians have the best developed separation of air and food passages.
Are there any vertebrates with exoskeletons?
While the term exoskeleton most commonly is used for invertebrates, such as arthropods, it is sometimes extended to such vertebrate structures as the shell of turtles and the hard covering of many groups of fossil fishes (such as the placoderms) (Gilbert et. 2007).
Are lizards invertebrates?
Answer Wiki. No. The word “invertebrates” comes from Latin words meaning “lacking a spine.” snakes, lizards, etc. all have spines. The invertebrates are animals like spiders, insects, bacteria, amoebae, that kind of thing. Reptiles are closer to bird-like than invertebrate-like.
What are some facts about invertebrates?
Additional Facts. Invertebrates are ectotherms (cold-blooded): they warm their bodies by absorbing heat from their surroundings. Most invertebrates live in water or spend at least some part of their life in water. Some groups of invertebrates live on land. Common examples include worms, insects and spiders.
What are examples of invertebrate animals?
An invertebrate is an animal without a backbone. Common examples of invertebrates include snails, clams, insects, spiders, and worms.
Is clam vertebrate or invertebrate?
Clam, in general, any member of the invertebrate class Bivalvia—mollusks with a bivalved shell (i.e., one with two separate sections). More than 15,000 living species of bivalves are known, of which about 500 live in fresh water; the others occur in all seas. Bivalves usually live on or in sandy or muddy bottoms.