How can animals disperse seeds? + Example - Socratic
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 …
How are pine seeds dispersed? - Socratic
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 …
From the point of view of an angiosperm, what is the ... - Socratic
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 …
What are some necessary characteristics of a seed that is ... - Socratic
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 …
What is the function of a fruit? - Socratic
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 …
What is an environmental threshold? + Example - Socratic
2017年11月5日 · An environmental threshold is a point at which the environment or ecosystem cannot recover. An environmental threshold is a point at which the environment or ecosystem cannot recover. Once an ecosystem passes a threshold, it cannot return to its original state. For example, if a large forest is being harvest over time and is becoming increasingly fragmented. …
Seeds vs. Seedless Plants - Biology - Socratic
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.
Mark Twain said the following: "Man is the only animal that
2016年12月3日 · Samuel Clements (Mark Twain) often showed his characters in embarrassing situations caused by their own foolishness. Clemens is saying that people can be more foolish than animals in their actions and that they should be aware of their own foolishness. He also says so in a humorous way. Whether animals blush or not under emotional stress is probably not …
If a homozygous tall pea plant is crossed with a homozygous
2018年1月30日 · 25% of the heterozygous cross are short, and the offspring of a homozygous dominant and homozygous recessive pea plant will always display the dominant trait (phenotype), because they are heterozygous. In this explanation, I'm assuming that the allele "T" for tall plants is dominant to the allele "t" for short plants, like in Gregor Mendel's pea plant experiment. A …
When does entropy increase and when does it decrease?
2015年12月6日 · The system entropy (S) by the modern definition is the amount of energy dispersal in a system. Entropy (S) by the modern definition is the amount of energy dispersal in a system. Therefore, the system entropy will increase when the amount of motion within the system increases. For example, the entropy increases when ice (solid) melts to give water (liquid). It …