Water adaptations, Biology

Water Adaptations

After becoming familiar with the two kinds of water stresses you would like to know about the adaptations in plants and animals which enable them to survive under conditions of water stress Adaptations in Plants Hydrophytes: Hydrophytes are those plants which grow in aquatic habitats like lakes, ponds, rivers, sea. According to their habitat they are further divided into the following categories.

Free floating plants: These plants remain in contact with water and air, but not with substratum. They float freely on the water surface. Leaves in some of these plants are very minute, while others are quite large. Some of the free floating hydrophytes are WolMa, Lemna, Spoirodella, Azolla, Salvinia, Pistia and Eichhornia (Figure shown below).

2422_free floating plant.jpg

Rooted plants with floating leaves: These plants grow on margins and in shallow water bodies. Roots of these hydrophytes are fixed in mud, but leaves have long petioles which keep them floating on the water surface. The remaining parts of the plant except leaves, remain in water. Some of the rooted hydrophytes are Nymphaea, Nelumbo, Trapa, and Marsilea (Figure shown below).

172_rooted hydrophytes.jpg

Submerged floating plants: These plants remain in contact with only water, being completely submerged in water and are not rooted in the mud. Their stems are long and leaves generally small. Some of the examples are Ceratophyllum and Utriculalria.

Rooted submerged plants: These hydrophytes are found completely submerged in water but remain rooted in soil. Hgdrilla is one of the examples which is a slender weed with fibrous roots.

Posted Date: 12/11/2012 12:47:31 AM | Location : United States







Related Discussions:- Water adaptations, Assignment Help, Ask Question on Water adaptations, Get Answer, Expert's Help, Water adaptations Discussions

Write discussion on Water adaptations
Your posts are moderated
Related Questions
What are the four groups of protozoans? The four major groups of protozoans are the sarcodines (that form pseudopods, like amoebae), the mastigophores (flagellated, such as the

G L YCOLIPIDS They are lipids having sugar residues. Two common glycolipids are cerebrosides and gangliosides. (1) Cerebrosides They are made of amino alcohol sphi

what are viruses?its history?its life cycle and the diseases caused by it?

Define drug-nutrient interaction and drug- drug interactions? Generally, administering oral medication along with the food or at a mealtime is a convenient manner of drug dosin

Can our experiences change our brain A. It is now know by Scientists that brain is remarkably "plastic:" it continues to change during the course of life in accordance with our


When the ratio of insulin to glucagon is >1, which is the following is true with regards to fatty acid synthesis? -malonyl CoA will inhibit carnitine palmitoyl transferase 1

Define Interactions between Volatile Substances and Proteins? Flavour binding may involve adsorption at the surface of food or penetration to the food interiority by diffusion

Define National Iodine Deficiency Disorder Control Programme (NIDDCP)? The prevalence of iodine deficiency disorders (IDD) are seen more among adolescent's young adults and sc

Substrates are reagent molecules upon which enzymes act. The enzyme has spatial binding sites for the attachment of its substrate. These sites are known as activation centers of