1. why brachiopods prefer clear water to muddy waters?? 2. what feature do brach
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Question
1. why brachiopods prefer clear water to muddy waters??
2. what feature do brachiopods and bryozoans have in commom?
3. do you think this type of bryozoan would survive better in shallow, high energy environments or quiet, low energy environments? explain
4. when did nautiloids first appear in fossil record? where are modern nautiloids found today?
5. what led to the evolution of curving and then coiling of nautiloid shells?(hint: easier to move around , feed, reproduce with a barrel tied to your back)?
6. why would predators like nautiloids need have a high level of intelligence?
7. what advantage would excellent eyesight provide nautiloids in hunting?
8. why crinoids is rare in the fossil record?
9. how crinoids feed?
Explanation / Answer
1. why brachiopods prefer clear water to muddy waters??
Brachiopods prefer clear water because they feed by filtering tiny particles from sea water. That’s why Brachiopds prefer clear water than muddy water.
2. what feature do brachiopods and bryozoans have in commom?
They both live in marine water
They prefer clear water
They feed on suspended particles in the water
They have hard surface body
3. do you think this type of bryozoan would survive better in shallow, high energy environments or quiet, low energy environments? explain
Encrusting and massive forms live in high energy environs
Delecate branching forms live in low energy environs
4. when did nautiloids first appear in fossil record? where are modern nautiloids found today?
They appeared in Late Cambrain period
They found in SW Pacific Ocean from Samoa to Philippines and in Indian Ocean off the coast of Australia
5. what led to the evolution of curving and then coiling of nautiloid shells?(hint: easier to move around , feed, reproduce with a barrel tied to your back)?
Glaciation and cooling during Ordovian period may led to evolution of curving/coiling of nautiloid shells
6. why would predators like nautiloids need have a high level of intelligence?
Nautiliods are predators they require intelligence to locate the prey and capturing and it. Also need intelligence for self-protection.
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