Plants

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Hey! Today I'm talking about plants.  All plants are green. The substance that makes them green is called chlorophyll. This is stored in containers called chloroplasts, which also changes energy from the sun into nutrients in each plant cell.

Each plant cell has a cell wall which helps maintain its structure.  It is made of cellulose which prevents some plants from drying out.  Plants also have a chamber to store leftover nutrients called a vacuole.

There is also the nucleus of the plant cell. It sends messages through the plant cell and puts everything in place. These functions are called organelles. There are also about 285,000 species of plants.

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The difference between vascular and non-vascular plants is that vascular plants, like trees, have roots.  They can also move resources through them and can grow branches.

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Non-vascular plants, like mosses and algae, don't have roots, can't move lots of resources through them, and can't grow branches.  Non-vascular plants came earlier then vascular plants. Then plants evolved and made vascular plants.

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Plants have also adapted to living on land by getting different ways of protection and support to survive environments on land.  An example is how cactus have thorns to not be eaten by animals and to store water for nutrients. 

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The first plants came from the sea and adapted to land over time.  It takes a long time for different types of plants to adapt to different environments, but they have adapted to survive powerful environments.

Mosses were one of the first plants to come from the sea.  They come from a group called bryophytes.  They can live in any continent and since they don't have roots, they absorb water and nutrients through their leaves.

Mosses usually live on forest floors. There are 12,000 species of moss and they also have rhizoids, which allow them to absorb water through their leaves. Rhizoids also let mosses survive without getting that much sun.

Bye that's the end of my blog.