Photosynthetic organisms are the primary source for all of the biotic energy requirements of an ecosystem.
Have you ever wondered where the wonderful colours of plants come from? Pigments are behind the many colours we see in plants.
Mars is visible in the night sky without the help of a telescope, so it has fascinated people for thousands of years. The next big step is a human mission to Mars.
Every tomato seed contains a tiny tomato plant that is alive but dormant. This means that it is not growing, it is just waiting.
Three of the basic needs of humans on Earth are food, air and water.