1. Porifera By Gianna & Anna

2. Porifera ▪ “Porifera”- a phylum of invertebrate animals comprising the sponges ▪ Live in all regions – Marine water ▪ Amebocyte- immobile cell in intverbrates ▪ Asymmetrical ▪ Fixed in one place – immobile (sessile) https://www.google.com/search?q=sponges+nervous+system&biw=994&bih=461&sourc e=lnms&tbm=isch&sa=X&sqi=2&ved=0CAYQ_AUoAWoVChMIzI27pfOjyAIVAlA- Ch2Izwud&safe=active&ssui=on#safe=active&tbm=isch&q=porifera https://en.wikipedia.org/wiki/Sponge

3. Nervous System ▪ Absent ▪ No nerve or sensory cells https://www.google.com/search?q=sponges+nervous+sy stem&biw=994&bih=461&source=lnms&tbm=isch&sa= X&sqi=2&ved=0CAYQ_AUoAWoVChMIzI27pfOjyAIVAlA- Ch2Izwud&safe=active&ssui=on#safe=active&tbm=isch &q=porifera https://en.wikipedia.org/wiki/Sponge

4. Digestive System ▪ Filter Feed ▪ Collar cell ▪ Serves two purposes ▪ Moves flagella back and forth to force in water ▪ Breaks food into particles http://www.oceanicresearch.org/education/wonders/spong es.html

5. Excretory, Circulatory Respiratory ▪ Diffusion/Osmosis https://www.google.com/search?q=sponges&es_sm=93&so urce=lnms&tbm=isch&sa=X&ved=0CAcQ_AUoAWoVChMI__z K2P-jyAIVhXA- Ch0y1wM7&biw=994&bih=461&safe=active&ssui=on#imgrc =psX532DHTCVy-M%3A

6. Support or Skeletal? ▪ Absent ▪ Provide structural support and deter predators ▪ Spicules- structural elements providing support ▪ Made up of Calcium Carbonate https://www.google.com/search?q=glass+sponges&es_sm=93&source=lnms&tbm= isch&sa=X&ved=0CAgQ_AUoAmoVChMI_P-XuP6jyAIVjDk- Ch31xgTC&biw=994&bih=461&safe=active&ssui=on#safe=active&tbm=isch&q=spo nges

7. Sexual Reproductive ▪ Both ▪ Release sperm into water ▪ Captured choanocytes of another sponge https://www.google.com/search?q=sexual+reproduction+of+sponges&espv=2&biw =994&bih=461&source=lnms&tbm=isch&sa=X&ved=0CAYQ_AUoAWoVChMIjKjB3v ajyAIVSKweCh1U7Qas&safe=active&ssui=on#safe=active&tbm=isch&q=sperm+of+ sponge&imgrc=cOG8ENGbkcWNrM%3A

8. Asexual ▪ Budding ▪ Both ▪ New organism develops from outgrowth ▪ Cell division https://www.google.com/search?q=sexual+reproduction+of+sponges&espv=2 &biw=994&bih=461&source=lnms&tbm=isch&sa=X&ved=0CAYQ_AUoAWoVCh MIjKjB3vajyAIVSKweCh1U7Qas&safe=active&ssui=on#safe=active&tbm=isch& q=asexual+reproduction+in+sponges&imgrc=O8QM-gYQQnZyWM%3A

9. Hexactinellida ▪ Sponges with a skeleton made of 4 and/or 6 siliceous spicules ▪ Found in Northern and Antarctic water ▪ “Glass Sponges” https://www.google.com/webhp?sourceid=chrome- instant&ion=1&espv=2&ie=UTF- 8&safe=active&ssui=on#q=calcarea&safe=active&ssui=on https://www.google.com/search?q=glass+sponges&es_sm=93&sour ce=lnms&tbm=isch&sa=X&ved=0CAgQ_AUoAmoVChMI_P- XuP6jyAIVjDk-Ch31xgTC&biw=994&bih=461&safe=active&ssui=on

10. Demospongiae ▪ Largest class containing 90% of living sponges ▪ “Bath Sponge” https://www.google.com/search?q=sponges&es_sm=93 &source=lnms&tbm=isch&sa=X&ved=0CAcQ_AUoAWoVC hMI95nx6v2jyAIVwTw- Ch1wwwhT&biw=994&bih=461&safe=active&ssui=on https://www.google.com/webhp?sourceid=chrome- instant&ion=1&espv=2&ie=UTF- 8&safe=active&ssui=on#q=calcarea&safe=active&ssui=on

11. Calcarea ▪ Cellular sponges made out of Calcium carbonate ▪ Found in tropical waters ▪ “Grantia” http://micro.magnet.fsu.edu/optics/olympusmicd/galleries /darkfield/grantia.html https://www.google.com/webhp?sourceid=chrome- instant&ion=1&espv=2&ie=UTF- 8&safe=active&ssui=on#q=calcarea&safe=active&ssui=on