Transcript compare the rotifer and bryozoan

COMPARE THE ROTIFER AND
BRYOZOAN
• ROTIFER
• BRYOZOAN
How can we compare bryozoans and rotifers?
ROTIFER
• 1. separate sexes
• 2. Ciliated crown
• 3. Free swimming
BRYOZOAN
•
•
•
•
•
1. hermaphroditic
2. tentacles
3. sessile
4. shell
5. lives in colony
INSTRUCTIONAL OBJECTIVE
• 1. Identify bryozoan characteristics
• 2. Identify characteristics of rotifers
• 3. Compare and contrast life functions of bryozoan
and rotifers
ROTIFERS AND BRYOZOA
• The Rotifer and the Bryozoan are microscopic marine organisms
that are classified in separate phyla based on distinct
characteristics. Rotifers and Bryozoans are simple, multicellular
animals that carry out their life functions for survival.
• GUESS THE AIM???
HOW DO ROTIFERS AND BRYOZOANS CARRY
OUT THEIR LIFE FUNCTIONS?
• ACTIVITY
• 1. CREATE CHART ON WORKSHEET. USE RULER
• 2. LOOK UP LIFE FUNCTIONS WITH BRIEF DESCRIPTION
3. LOOK UP HABITAT
• 4. DESCRIBE ITS DIET(HINT WE STUDIED IT)
ROTIFER STRUCTURE/BEHAVIOR
FLAME CELL
ANUS
EYESPOT
CILIATED CROWN
MOUTH
STOMACH GASTRIC GLAND INTESTINE
CELL MEMBRANE
OVARY-egg cells
DIET
HABITAT
TESTES-sperm cells SEPARATE SEXES
ROTIFER FUNCTION AND BRIEF DESCRIPTION
ROTIFER STRUCTURE/BEHAVIOR
ROTIFER FUNCTION AND BRIEF DESCRIPTION
FLAME CELL
excretion
ANUS
EYESPOT
sensitivity
CILIATED CROWN
Locomotion and ingestion
MOUTH
ingestion
STOMACH GASTRIC GLAND INTESTINE
1-way digestion(1 direction and 2 openings)
CELL MEMBRANE
respiration
OVARY-egg cells
DIET
HABITAT
TESTES-sperm cells SEPARATE SEXES
Sexual reproduction External fertilization and development
plankton
BRYOZOAN STRUCTURE AND BEHAVIOR
ANUS
BRAIN
TENTACLES
MOUTH
STOMACH INTESTINE
CELL MEMBRANE
OVARY and TESTES HERMAOPHRODITE
DIET
HABITAT
BRYOZOAN LIFE FUNCTION AND DESCRIPTION
BRYOZOAN STRUCTURE AND BEHAVIOR
BRYOZOAN LIFE FUNCTION AND DESCRIPTION
ANUS
Excretion
BRAIN
Sensitivity and coordination
TENTACLES
ingestion
MOUTH
ingestion
STOMACH INTESTINE
1-way digestion
CELL MEMBRANE
respiration
OVARY and TESTES HERMAOPHRODITE
Asexual-budding
Sexual-external development and fertilization
DIET
plankton
HABITAT
Benthic and sessile in a shell
COMPARE THE LIFESTYLE AND HABITAT OF
ROTIFERS AND BRYOZOAN?
ROTIFER
BRYOZOA
HABITAT AND LIFESTYLE
ROTIFER
BRYOZOAN
• Live in moist sands along shore
and in aquarium gravel
• Swim by ciliated crown(unique to
animal world)
• Can telescope body
• Predatory species and scavenger
species
• Branching colonies of bryozoans
composed of hundreds of
individuals cover the surface of
rocks, seaweeds and shells
• Some colonies stand erect and
others encrust on substrates
• They live in shells and let tentacles
out to filter feed
SUMMARY
• The ROTIFER and BRYOZOAN are examples of
microscopic, multicellular animals that live in
marine sediments and on the surface of substrates.
Rotifer has bilateral symmetry and the bryozoan
has radial symmetry.
SUMMARY EXIT QUIZ
• 1. T or F. correct for full credit.
Rotifers are asexual and Bryozoan are both sexual and asexual(budding).
• 2. Describe the difference in habitats of the rotifer and bryozoan.
• 3. Rotifers use which structure to help ingest food?
A. ciliated crown B. tentacle C. stomach D. anus
• 4. Bryozoans and rotifers have which type of digestion? A. 1-way B. 2-way
Explain answer.