Lesson 1 - SUPPORT SYSTEMS IN ANIMALS - Brebner High School

ePAPER READ

DOWNLOAD ePAPER

brebnerhigh.co.za

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

START NOW

HYDROSTATIC SKELETONCONSISTS OF:• Fluid under pressure in a closed body compartmentMOVEMENT: These animals move by the contraction and relaxationof muscles acting against the fluid in the body compartments.<strong>ANIMALS</strong>:• Jelly-fish• Flatworms• Roundworms• Earth worms

GRADE 11 BUSINESS STUDIES - Brebner High School

Types of skeleton• Some animals may be supported by awatery fluid inside their bodies(earthworm) – hydrostatic skeleton• Some have a hard external skeleton(crabs/locusts) – exoskeleton• Some have bone internal skeletons (frogs,birds) – endoskeleton

Page 2: TYPES OF SKELETONS• Hydrostatic s
Page 8 and 9: HYDROSTATIC SKELETONENVIRONMENT:•
Page 10 and 11: EXOSKELETONMOVEMENT:• Muscles are
Page 12: ENDOSKELETONCONSISTS OF:• Hard su
Page 15 and 16: ENDOSKELETONDISADVANTAGES• Parts

Lesson 1 - SUPPORT SYSTEMS IN ANIMALS - Brebner High School

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?