7th Grade-Ch. 2 Sec. 5 Echinoderms

2,127 views
1,742 views

Published on

Published in: Education
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total views
2,127
On SlideShare
0
From Embeds
0
Number of Embeds
7
Actions
Shares
0
Downloads
51
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide

7th Grade-Ch. 2 Sec. 5 Echinoderms

  1. 1. CH. 2 SEC. 5 ECHINODERMS
  2. 3. characteristics of echinoderms: <ul><li>radially symmetrical </li></ul><ul><li>invertebrate </li></ul><ul><li>live on ocean floor </li></ul><ul><li>endoskeleton </li></ul><ul><li>(spiny internal skeleton) </li></ul><ul><li>water vascular system </li></ul><ul><li>(internal fluid system) </li></ul><ul><li>tube feet </li></ul>
  3. 4. examples : <ul><li>1. sea star </li></ul><ul><li>2. sea urchin </li></ul><ul><li>3. sand dollar </li></ul><ul><li>4. brittle star </li></ul><ul><li>5. sea cucumber </li></ul>1. 2. 3. 4. 5.
  4. 5. sea stars
  5. 7. 1. sea stars <ul><li>use arms & tube feet to capture prey </li></ul><ul><li>grasp clam  opens it w/ its tube feet  forces its stomach into clam  digestive chemicals break down clam’s tissues  sucks it out </li></ul><ul><li>can regenerate arms </li></ul>
  6. 8. regeneration <ul><li>process by which animal grows a new part to replace a lost one </li></ul>
  7. 9. 2. sea urchins <ul><li>no arms </li></ul><ul><li>covered w/ spines </li></ul><ul><li>look like pincushions </li></ul>
  8. 10. 3. Sand dollars
  9. 11. 4. Brittle stars
  10. 12. 5. sea cucumber
  11. 13. QUIZ TIME!!
  12. 14. Name 5 examples of echinoderms. <ul><li>1. sea star </li></ul><ul><li>2. sea urchin </li></ul><ul><li>3. sand dollar </li></ul><ul><li>4. brittle star </li></ul><ul><li>5. sea cucumber </li></ul>
  13. 15. What are the characteristics of echinoderms? <ul><li>radially symmetrical </li></ul><ul><li>invertebrate </li></ul><ul><li>live on ocean floor </li></ul><ul><li>endoskeleton </li></ul><ul><li>(spiny internal skeleton) </li></ul><ul><li>water vascular system </li></ul><ul><li>(internal fluid system) </li></ul><ul><li>tube feet </li></ul>
  14. 16. regeneration <ul><li>process by which animal grows a new part to replace a lost one </li></ul>
  15. 17. How do sea stars capture their prey? <ul><li>use arms & tube feet to capture prey </li></ul><ul><li>grasp clam  opens it w/ its tube feet  forces its stomach into clam  digestive chemicals break down clam’s tissues  sucks it out </li></ul>

×