The correct answer is <u /><em>a</em><em>daption</em>. The particular environment in which a particular environment is exposed to gives it the characteristic or the ability to adapt. This is how a particular ecosystem works. It is the relationship of organisms within their environment that evolves through time in order for it to survive and propagate into more adapted kinds of species.
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Answer:
The first cave paintings are characterized by the use of natural pigments of plant origin such as charcoal, body wastes such as feces and mineral origin.
The paintings were made in caves in areas of darkness and painted with fingers.
The most common way these trees undergo pollination is through seeds and pollen.
The pollination is done with help of wind and birds where pollen transform from one plant to another.
<u>Explanation:</u>
The plants that undergoes pollination process through the seeds that are present in it are called as Angiosperms. These contains fruits. The seeds are usually present inside these fruits. Flowering plants are also called as Angiosperms.
These fruits and flowers are absent in gymnosperm. Even then they contain seeds inside the leaves surface. They will undergo pollination with these naked seeds. It is the fruits, flowers and the endosperm that are present in the seeds that help us to find difference between these two. The only common thing that exists between these two are seeds and pollen with which they pollinate.
In gymnosperms, pollen is transferred from male cone to female cone through wind or birds. Now, the pollen is germinated into pollen tubes and sperm for egg fertilization.
