Some seeds have hooks or spines in them. why
WebSnails disperse the small seeds of a very few plant species (e.g., Adoxa). Earthworms are more important as seed dispersers. Many intact fruits and seeds can serve as fish bait, those of Sonneratia, for example, for the catfish Arius maculatus. Certain Amazon River fishes react positively to the audible “explosions” of the ripe fruits of Eperua rubiginosa. … WebAug 9, 2024 · Some seeds have wing like or hair like structure. Over thousands of generations, the shape of the seed wings becomes modified to take the best advantage of the winds prevailing at the time when the seeds are ripened and ready for dispersal. Very small seeds may have extended, almost weightless structures that enable them to be …
Some seeds have hooks or spines in them. why
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WebSep 2, 2014 · Agents of dispersal More than wind and water, animals and birds can make valuable allies who can help disperse seeds. Some fruits have spines and hooks, which … Webgermination. . The root grows down to take up nutrients from the soil and the shoot grows up towards the sunlight to become a stem. The seed becomes a seedling. As this …
Web42K views, 2.2K likes, 385 loves, 2.3K comments, 648 shares, Facebook Watch Videos from CelebrationTV: BIBLE STUDY With Apostle Johnson Suleman. ( April 11th, 2024) WebQ. Statement 1: Spiny seeds with hooks are dispersed by animals. Statement 2: Some seeds are even dispersed by the bursting of fruits. Q. Assertion :Some fruits are furnished with hooks, spines, barbs, or other devices for sticking to the body of animals. Reason: Such fruits are dispersed by animals. Group the seeds given in figure (i) to (iii ...
WebAnimals: The fruits and seeds with hooks, spines, bristles, stiff hair, etc., get attached to the body of hairy and woolly animals and are carried away by them to distant places. For instance fruits of Xanthium and Urena bear curved hooks, spear grass has a bunch of stiff hair, Tribulus has sharp and rigid spines. WebJan 22, 2024 · The Strategy. The fruit of lesser burdock is a round head about three-quarters of an inch (2 cm) wide, with purple petals, covered in long, flexible, spines that end in …
WebFeb 12, 2011 · Cocklebur seeds have spines and hooks that attach themselves to animals or people who step on them, carrying them away from the original plant. This causes them to spread over a greater area than ...
WebJul 13, 2024 · The spiky things are called spines, and they have several functions. The term “cactus” is used to describe plants in as many as 200 genera, including more than 2,000 … crysis remastered configWebExamples of seed dispersal by wind; Seeds which have wings and hairy parachutes on them are carried by the wind. E.g. – sycamore, ash, maple, lime, dandelion and thistle. When pods dry, they split open suddenly and shooting the seeds away from the parent plant and this is easy when the wind is there. E.g. – peas, lupins, laburnum and gorse. crypto rig motherboardWebSome plants produce seeds that are covered in hooks or spines. These seeds get attached to animals fur or feathers. They are carried upto a certain distance away from their parent … crypto rigsWebANIMALS too play an important role in scattering away the seeds to far off places. Dispersal by Animals • Many fruits and seeds are spread by animals, birds, insects and humans. • Some seeds have hooks or spines which help them to stick to the body fur or hair of animals and also to the clothes of humans and are thus carried away. crypto ringWebFeb 16, 2024 · Answer: The three agents of dispersal are: Wind: wind scatter the light weight seeds of cotton plants and Dandelion. Water: seeds of the plant that grow in or near water … crypto rigs usaWebOct 20, 2024 · Xanthium and Urena are the plants in which the fruits produces seeds having structures like spines or hooks. Why do seeds have hooks and barbs on them? When … crypto rigWebJun 4, 2024 · (c) Seeds of Xanthium, Urena have spines and hooks on them, these hooks or spines are attached to the fur of the animal body. When animals move to other places and rub their body with tree, etc., these seeds fall from their body and get dispersed.. Therefore, these are dispersed through animals. Question 15. crysis remastered custom resolution