KINGDOM ANIMALIA

Usual mode of reproduction: Sexual

Type of fertilization: External

Embryology: Blastopore contributes to the formation of anus; cleavage is radial

Symmetry: Immature form is bilateral; mature form is five-part radial

Body cavity: Lined with tissue derived from mesoderm

Segmentation: No evidence

Skeleton: Spiny exoskeleton secreted by the dermis and covered with a thin epidermis

Habitat: marine

Into what phylum should this organism be placed?

• Chordata

• Echinodermata

• Mollusca

• Nematoda

Coelomate, exoskeleton and jointed appendages are characteristics of

• Annelida

• Arthropoda

• Mollusca

• Chordata

Pharyngeal slits, endoskeleton derived from mesoderm and ventral heart are characteristics for

• Annelida

• Chordata

• Cnidaria

• Nematoda

The ciliated, free-swimming larva of the cnidarian is called a _______________.

• blastula

• planula

• meusa

• polyp

Which phylum and species that has these characteristics

Pseudocoelomate narrow body pointed at both ends Locomotion by contraction of longitudinal muscles Dioecious

• Annelida - Pheretima sp

• Nematoda - Achatina sp

• Nematoda - Ascaris sp

• Annelida - Asterias sp

Which of the following is not an arthropod characteristic?

• Jointed appendages

• Nonsegmented body

• molting

• exoskeleton

Which phylum is comprised of acoelomate, bilaterally symmetrical and tripoblastic organisms?

• nematoda

• chordata

• porifera

• platyhelminthes

Tags

NGSS.MS-LS4-2

Which of the following group of animals is sessile?

• jellyfish

• cockles

• sponge

• coral

Which phylum is comprised of coelomate, bilaterally symmetrical, non segemented and tripoblastic organisms?

• platyhelminthes

• mollusca

• cnidaria

• echinodermata

Which of the following characteristics is found in all molluscs?

• mantle

• shell

• visceral mass

• muscular foot