Members of phylum Porifera are commonly known as spongs. They are generally marine and mostly asymmetrical animals. These are primitive multicellular animals and have cellular level of organization (lacks tissues). These Organisms (belonging to phylum Porifera) lacks most of the structures that are present in multicellular organisms like digestive system, respiratory system, Brain etc
Body of Spongs are made up of spicules or spongin fibers and these organism contain a water canal system which helps them in digestion, reproduction and catching their food in marine habitat.
The phrase "of Arizona" is B. an adjective phrase, because it acts as if it were a simple adjective and describes the subject.
Answer: Natural variation.
Answer:320 we are not over run because first of all the earth is huge and rabbits die to
Explanation:
Answer:
Abiotic factors in this ecosystem :
- Rain
- Wind
- Temperature
- Altitude
- Soil
- Pollution
- Nutrients
- Types of Soil
- Potenz of Hydrogen (pH)
- Sunlight
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