1.Difference between Stomatal and Lenticular Transpiration
2.List the excretory organs of invertebrates in relation with the animals
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Answer:
(1) The differences between stomatal transpiration and lenticular transpiration are as follows:
1. Stomatal transpiration occurs through small pores present on the surface of leaves known as stomata.
On the other hand, lenticular transpiration takes place through small pores present on the bark of the plants.
2. Stomatal transpiration occurs only during the day time as the stomata remain open only during that time.
On the other hand, lenticular transpiration occurs at day and night.
3. Stomatal transpiration constitutes of 70-80℅ of the entire transpiration that occurs in plants.
On the other hand, lenticular transpiration constitutes of 15-20℅ of the total transpiration taking place.
(2) The excretory organs of invertebrates in relation to the animals are:
Protozoa: diffusion through the body surface as no specific excretory organs present.
Porifera: osculum.
Plathyelminthes: flame cells.
Annelida: Nephridia.
Arthropoda: malphigian tubules.
Echinoderamata: No excretory organs.
Coelenterata: Excretion via diffusion as no proper secretory organs present.
Mollusca: one/two pairs of kidneys present.
The difference between "Stomatal and Lenticular Transpiration":
Lenticular Transpiration:
The "lenticular transpiration" is a type of the transpiration which occurs through the "small pores present" in the bark. This occurs via the old stem. This process occurs throughout the day and night.
Stomatal transportation:
"Stomatal transportation" occurs through the "stomata of the leaves and stem". The lose of water via stomata is called stomatal transportation. The stomatal to transpiration is controlled by the plant by altering the "size of the stoma". This feature is not found in lenticular transpiration.