Biodiversity Final Practical - Animalia
INFORMATION NO PICTURES
Give characteristics of Phylum Porifera Correct Answer: - They are Sponges
- No true tissues
- They filter feed and filter water
- No true tissues mean they are amorphous, meaning it can disintegrate
- Contain spongin (flexible protein) and silica (much harder)
What does porifera mean? Correct Answer: Pores
What does it mean to filter feed Correct Answer: Filter out food particles in the surrounding water as
they draw it through their body
What is the consequence to having no tissues for sponges Correct Answer: Limits their function
What are the two specialized cell types of sponges (Phylum Porifera) Correct Answer: Choanocytes -
phagocytosis
Amoebocytes - use pseudopodia to digest food and carry nutrients to other cells
What gelatinous layer in the sponge slide maintain the shape of the sponge Correct Answer: Mesophyll
Describe phylum Cnidaria and what does Cnidaria mean Correct Answer: - One opening for both mouth
and anus
- Mostly marine, some freshwater
- Radial symmetry
- 2 tissue layers (ectoderm and endoderm)
- Tentacles surrounding mouth and anus
- Nematocysts (immobilize prey with toxins contained in cells)
- Cnidaria means stinging nettle
How many classes within Phylum Cnidaria and wheat are they Correct Answer: 3
Hydrozoa
Scyphozoa
Anthozoa
Characteristic of Class Hydrozoa.
What does hydra mean
What does obelia mean
What does hydrozoa mean Correct Answer: Bunch of individuals make up a colony
Freshwater
, Marine
Water animal
What does scyphozoa mean Correct Answer: Cup animal
What does Anthozoa mean Correct Answer: Flower animal
What do polyps do Correct Answer: They are cylinder shaped that adhere to the substrate by the aboral
end of their body and extend their tentacles
What do Medusa do Correct Answer: Flattened, mouth-down version of the polyp
Why does radial symmetry produce slow movement in organism Correct Answer: No head so can't have
directed movement
Advantages and disadvantages to having one opening to serve as both mouth and anus Correct Answer:
Advantages - conserves energy. uses less energy to support incomplete digestive system
Disadvantages - can't specialize digestive tract and miss feeding opportunities because they have to wait
until expel waste before eating again
What is the function of nematocysts Correct Answer: Stinging thread that penetrates the body wall of
prey
What is the translation of hydrozoa Correct Answer: Water animal
What is the function of tentacles, which of the body forms the hydra exhibit Correct Answer: Tentacles -
capture prey
Body form - polyp
What is the function of feeding polyp Correct Answer: Feed for the colony
What is function of reproductive polyp Correct Answer: Reproduce for the colony
What is the Medusa bud Correct Answer: Offspring of the colony
In the class Anthozoa, What does anthozoa mean Correct Answer: Flower animal
Which body form are anthozoans limited to Correct Answer: Polyp
What does scyphozoa mean Correct Answer: Cup animals
What phylum means "Flat Worm". Where must they live Correct Answer: Phylum Platyhelminths. Must
live in moist environment because very thin
INFORMATION NO PICTURES
Give characteristics of Phylum Porifera Correct Answer: - They are Sponges
- No true tissues
- They filter feed and filter water
- No true tissues mean they are amorphous, meaning it can disintegrate
- Contain spongin (flexible protein) and silica (much harder)
What does porifera mean? Correct Answer: Pores
What does it mean to filter feed Correct Answer: Filter out food particles in the surrounding water as
they draw it through their body
What is the consequence to having no tissues for sponges Correct Answer: Limits their function
What are the two specialized cell types of sponges (Phylum Porifera) Correct Answer: Choanocytes -
phagocytosis
Amoebocytes - use pseudopodia to digest food and carry nutrients to other cells
What gelatinous layer in the sponge slide maintain the shape of the sponge Correct Answer: Mesophyll
Describe phylum Cnidaria and what does Cnidaria mean Correct Answer: - One opening for both mouth
and anus
- Mostly marine, some freshwater
- Radial symmetry
- 2 tissue layers (ectoderm and endoderm)
- Tentacles surrounding mouth and anus
- Nematocysts (immobilize prey with toxins contained in cells)
- Cnidaria means stinging nettle
How many classes within Phylum Cnidaria and wheat are they Correct Answer: 3
Hydrozoa
Scyphozoa
Anthozoa
Characteristic of Class Hydrozoa.
What does hydra mean
What does obelia mean
What does hydrozoa mean Correct Answer: Bunch of individuals make up a colony
Freshwater
, Marine
Water animal
What does scyphozoa mean Correct Answer: Cup animal
What does Anthozoa mean Correct Answer: Flower animal
What do polyps do Correct Answer: They are cylinder shaped that adhere to the substrate by the aboral
end of their body and extend their tentacles
What do Medusa do Correct Answer: Flattened, mouth-down version of the polyp
Why does radial symmetry produce slow movement in organism Correct Answer: No head so can't have
directed movement
Advantages and disadvantages to having one opening to serve as both mouth and anus Correct Answer:
Advantages - conserves energy. uses less energy to support incomplete digestive system
Disadvantages - can't specialize digestive tract and miss feeding opportunities because they have to wait
until expel waste before eating again
What is the function of nematocysts Correct Answer: Stinging thread that penetrates the body wall of
prey
What is the translation of hydrozoa Correct Answer: Water animal
What is the function of tentacles, which of the body forms the hydra exhibit Correct Answer: Tentacles -
capture prey
Body form - polyp
What is the function of feeding polyp Correct Answer: Feed for the colony
What is function of reproductive polyp Correct Answer: Reproduce for the colony
What is the Medusa bud Correct Answer: Offspring of the colony
In the class Anthozoa, What does anthozoa mean Correct Answer: Flower animal
Which body form are anthozoans limited to Correct Answer: Polyp
What does scyphozoa mean Correct Answer: Cup animals
What phylum means "Flat Worm". Where must they live Correct Answer: Phylum Platyhelminths. Must
live in moist environment because very thin
