The survival of plant species

Seed dispersal is the movement or transport of seeds as far away from the parent plant as possible.


The seeds and fruits of plants must be dispersed is to ensure that the new plants will be able to grow healthily and later produce new plants.


Plants have limited mobility and consequently rely upon a variety of dispersal vectors to transport their propagules, including both abiotic and biotic vectors. Seeds can be dispersed away from the parent plant individually or collectively, as well as dispersed in both space and time.

Seeds and fruits are dispersed in four main ways.

• by animals
• by the wind
• self dispersal
• by water

The flow chart below shows examples of common wild plants, and the many different ways in which these plants disperse their fruits and seeds. Click on the pictures to find out more about each.

Cornsnake lays eggs

Grasshopper Laying Egg In The Gravel

How did the dinosaurs die?

Science Year 5 - Chapter 2 - Survival of the Species

All living thing reproduce to ensure that they keep on exiting on this planet.

This is important because all living things depend on each other, for example, humans depend on fish on protein.

Therefore, both plants and animals have their own ways to ensure the survival of their species.

Living thing that cannot survive will soon become extinct or cease to exist. Mammoths and dinosaurs are examples of animal that no longer exit.
 
Mammoths

Dinosaurs








Rafflesia is an example of a plant species found in Malaysia that is facing extinction


Rafflesia

Preventing diseases from spreading

It is important that microorganisms that cause contagious diseases are destroyed or killed before they enter our body.

There are various way to prevent diseases from spreading, or to destroy the microorganisma:

1. Heating and boiling- Boiling water before drinking

2. Washing and treating wounds- Washing hands with soap

3. Covering food

4. Avoid from being infected-Cover wounds

Useful and Harmful Microorganisms

Useful and Harmful Microorganisms-Show