2017年2月21日 · Seeds can be dispersed when an animal consumes the seeds and later excretes it, or if the seed catches onto the fur/skin of the animal and falls off later. One of the means seeds can be dispersed by animals is when animals eat the seeds. This usually happens with fruit bearing plants, where the sweet fruit entices the animal into eating the seeds. It does …

2017年6月20日 · They can be dispersed in multiple ways. 1) Animals eat pine seeds and spread them around by defecating them and letting them grow. 2) Sometimes if the pine seeds are in a windy environment, they can be blown around and spread. 3) Some are dispersed by water. Currents can carry seeds across oceans, lakes and rivers, and they end up on shores where …

2016年9月6日 · The seeds of a flowering plant are surrounded by a tissue called fruit, which may be fleshy or dry. The functions of the fruit is to protect the seed inside and aid in its dispersal. Some fruits harden to make accessing the seed difficult. Many fruits promote wind dispersal . Some fruits have hooks or spurs, which cling to the skin and fur of animals and are dispersed …

2016年9月22日 · The principal botanical function of a fruit is the protection and dissemination of the seeds. Fruit is the seed bearing structure in flowering plants, formed from the ovary after flowering. Some fruits harden, to make accessing the seed difficult. Many fruits promote wind dispersal. Some fruits have hooks or Spurs which cling to animals and are dispersed to far off …

2017年5月9日 · Hairy structures, light weight, small size etc. help the seeds to disperse by the help of wind. Hairy structures, light weight, small size etc. help the seeds to disperse by the help of wind. These structures are adaptations in the seeds for dispersal to the remote places. Majority of the plants belong to the Asteraceae disperse their seeds by the help of wind. The dry …

2017年8月27日 · The fruits and seeds help the protection and their dispersal. 1. The fruits protect the seeds enclosed in the ovary. The seeds mature in the fruit by taking essential requirements. 2. The mature seeds retain the capacity of germination for a long period. It may be dispersed individually or along with the fruits to long distances by different agencies. The seeds …

2015年9月23日 · Spermatophytes (seed bearing plants) are highly evolved and the plants in other 3 divisions are comparatively less advanced and thallophytes being the most primitive. Seed plants mainly multiply by seeds. Seedless plants multiply by spores that may produced asexually or as a consequence of asexual reproduction.

2016年2月10日 · A force, #color(blue)F#, applied to an object causes an acceleration, #color(red)a#, which we know from Newton's 2nd law:

2017年7月31日 · In plants, mitosis only occurs in the meristematic tissue. The meristems of a plant are located at the tip of the stems and roots. The plant grows from there as this is where cells reproduce. Apical meristems help the plant grow taller while lateral meristems make the plant grow wider (from side stems).

2014年4月12日 · Entropy is a measure of the energy dispersal in the system. We see evidence that the universe tends toward highest entropy many places in our lives. A campfire is an example of entropy. The solid wood burns and becomes ash, smoke and gases, all of which spread energy outwards more easily than the solid fuel. Ice melting, salt or sugar dissolving, making popcorn …