Some seeds have hooks or spines in them. why

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August undefined, 2024

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 … 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)

Why do some seeds have hooks on them - Brainly.in

WebAug 3, 2024 · Some seeds have hooks and spines on them so that they can be dispersed to long distances. EXPLANATION: Hooks and spines help the seeds to attach themselves to … simply health quote

Seed dispersal agents — lesson. Science CBSE, Class 7.

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. … 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 … WebJul 7, 2024 · Answer: Xanthium and Urena are the plants in which the fruits produces seeds having structures like spines or hooks. Why do seeds have spines? EXPLANATION: … simply health qualifying period

Some seeds have hooks and spines on them why? - Brainly

WebSome seeds have claws, spines, hooks, or other parts that cause them to cling to animals passing by. After falling off or being pulled off the animal, the seeds can sprout in a new place. People power. We move seeds when we buy and plant them. Sometimes seeds get stuck in mud in our shoes or in bike tires, then end up in a new spot. If these ... WebSome 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 … simplyhealth refer a friendWebgermination. . 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 … raytheon campaign donations

"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 ... " - Some seeds have hooks or spines in them. why

Some seeds have hooks or spines in them. why

WebMar 14, 2024 · Why do some seeds have hooks and spines on them why? Wiki User. ∙ 2024-03-14 08:46:21. Add an answer. Want this question answered? ... Why is the phloem in a … WebThe seeds of the fruits get dispersed by different methods. Xanthium and Urena are the plants in which the fruits produces seeds having structures like spines or hooks. These …

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WebJul 10, 2024 · Why xanthium seeds have hooks and spines? Fruits and seeds of many plants are provided with hooks, spines, barbs or stiff hairs so that if an animal grazes or brushes against them, these stick to the animal’s body or clothing. Thus, the fruits of Xanthium strumarium (cocklebur) is provided with hook-like structures which are effective in ... WebSome of the most common species of plants to have this feature include: Avens. Burdock. Ragweed. Stickseed. Agrimony. Why do seeds have hooks or spines? You may be …

WebHow do the hooks on the seeds help in seed dispersal? The seeds of some plants are dispersed by animals. Plants such as burdock have hooks to which the seed is attached. These hooks easily get caught in the fur of mammals as they pass by the plant. At some point the seed will fall, often a considerable distance from the parent. WebSep 12, 2024 · Explanation: Hooks and spines help the seeds to attach themselves to the furs or coats of animals and then travel long distances. This helps the seeds to be …

WebOct 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 … WebANIMALS 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.

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 … raytheon camdenWebMay 25, 2024 · Why seeds have spines or hooks? They have spines or hooks to get attached to fur coats of animals and get transported over long distances. Therefore these outgrowths help in dispersal of the seeds. raytheon canada limited ontarioWebSome 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 plant. Later, these seeds may either fall off, or are rubbed off by the animals. In this way the seeds are dispersed to a new surrounding where they germinate. raytheon canada limited ottawaWebSep 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 … raytheon campus near atlantaWebJun 30, 2024 · Some seeds have hooks and spines on them so that they can be dispersed to long distances. EXPLANATION: Hooks and spines help the seeds to attach themselves to the furs or coats of animals and then travel long distances. In … raytheon campusWebFeb 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 … raytheon cameraWebQ. 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 ... simply health refer a friend