E. Answer the following in detail.
1. Write a detailed note on terrestrial plants.
2. How are the adaptations in desert and aquatic plants different
3. How do carnivorous plants get their food? Explain with reference to
Venus flytrap.
Answers
Answer:
Answer for first question
The distinction between aquatic and terrestrial plants is often blurred because many terrestrial plants are able to tolerate periodic submersion and many aquatic species have both submersed and emersed forms.[2] There are relatively few obligate submersed aquatic plants (species that cannot tolerate emersion for even relatively short periods), but some examples include members of Hydrocharitaceae and Cabombaceae, Ceratophyllum, and Aldrovanda, and most macroalgae (e.g. Chara and Nitella). Most aquatic plants can, or prefer to, grow in the emersed form, and most only flower in that form. Many terrestrial plants can tolerate extended periods of inundation, and this is often part of the natural habitat of the plant where flooding is common. These plants (termed helophytes) tolerate extended periods of waterlogging around the roots and even complete submersion under flood waters. Growth rates of helophytes decrease significantly during these periods of complete submersion and if water levels do not recede the plant will ultimately decline and perish
Explanation:
answer (1) A terrestrial plant is a plant that grows on, in, or from land. Other types of plants are aquatic (living in water), epiphytic (living on trees) and lithophytic (living in or on rocks).
answer (2) The desert plants are called xerophytes while aquatic plants are called hydrophytes. Xerophytes: These plants are adapted for living in extremely dry conditions. They have deep roots, small thin leaves, and waxy thick leathery cuticle to retain moisture.
answer (3)Like all plants, the Venus flytrap gets its energy from the sun in a process called photosynthesis. It digests insects and arachnids to get nutrients that are not available in the surrounding environment.
Venus fly traps, pitcher plants, and sundews all consume insects, but thats not how they get their energy. They still get their energy from the sun and transform it into food (such as sugars) using photosynthesis. They use the dead insects for their nutrients.