Annelids and Arthropods Flashcards
How do Annelids asexually reproduce?
Budding or Fission
How do Annelids sexually reproduce?
- External fert.
- hermaphroditic
What are deposit feeders?
They are organisms (like worms) that extract organic material from soil
- worm feces is rich in nutrients
What’s a clitellum?
A glandular selection where eggs are stored
What are marine worms?
Sedentary filter feeders
Self Explanatory
predators + scavengers
What’s a proboscis?
Tubular organ used for feeding
What is the body plan of phylum arthropoda?
Bilateral
How about the body cavity?
Coelomate
How are members of Phylum Arthropoda structured?
- segmented bodies
- head, thorax, abdomen
- jointed limbs for flexibility
Do arthropods have separate genders? How do they reproduce?
Yes
They use either internal or external reproduction
The jelly coat around fish eggs are called spermatophotes, they’re used for protection
What is an exoskeleton?
- Hard, external structure that covers outside of body
- made of chitin
What do exoskeletons do?
- give support
- protect
- prevent water loss
what’s a coelom?
A body cavity that contains the internal organs
what’s the difference between an endo and an exotherm?
an endotherm is an organism that can use body heat from it’s own cells to maintain a constant body temperature
an exotherm is an organism that relies on the temperature outside it’s body to maintain a constant body temp
