Questions Flashcards
Compare Annelids circulatory system and Anthropoda. Which organism is more complex
In some ways the earth worm is more advanced , but the Anthropoda have a heart and arteries delivering blood to the body
Explain why lichens are well suited to growing bacteria
Because their 2 organism in one and the fungus supply’s carbon dioxide and water needed for photosynthesis
What evolutionary adaptions are exhibited in flat and round worms
Cephalization, bilateral symmetry, and mesodermal, and true organs
What traits distinguish earthworms from other animals
True coelom, a ghizord ( stomach) decompose the soil into, also a clatelum which protects the young developed of eggs. As well as they have hephridia ( which are open ended tules that help an excression )
What are some advantages and disadvantages of having an exoskeleton? Describe one disadvantage is overcome
The protection of the exoskeleton is an advantage.
Disadvantage exoskeleton is heavy
-the exoskeleton doesn’t grow with the organism so it has to be sheded
Why reptiles succeed on land?
- they have a skin that reduces water loss
- need efficient lungs and circulation
- they have internal folding which increases the surface area
- aminiotic eggs allowed vertebrates to inhabit land
What are advantages of having an endoskeleton? What are some disadvantages
An endoskeleton refers to an internal skeleton, as opposed to an exoskeleton which refers to an external skeleton. Being internal, an endoskeleton can support greater weight without becoming too heavy for the organism. An exoskeleton will eventually become impractically heavy for an organism, thus putting limits on size. Also, the endoskeleton can grow with the organism, unlike an exoskeleton which requires regular molting as it is rigid and does not grow.
Being internal and covered by muscles and tissues, an endoskeleton offers little protection to the organism. There are also less rigid areas for muscles to pull against, resulting in less leverage.
