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= euglena Cell Diagram: Euglena is a genus of unicellular flagellate protists. There are many Euglena species which live both in fresh and salt waters. The most used Euglena species for scientific purposes is called Euglena gracilis. This unicellular flagellate includes chloroplasts in the body of the cell, being able to feed by autotrophy like plants, but also like animals, heterotrophically. As Euglena has both features from animals and plants, it was very difficult to be classified at the beginning. It is composed by a red eyespot, an organelle  with carotenoid pigment granules. It does not have a wall cell, but a pellicle made up of a protein layer and microtubules. These important features make Euglena be very flexible and contractile. When there is not enough moisture, Euglena forms a wall around it and then lies dormant until the environment will get back to normal.

Explanation:

hope this helps better ( this was in my science note )

a is the final ! : )

the period of human evolution has coincided with environmental change, including ('hominin' refers to any bipedal species closely related to humans – that is, on how do we know earth's climate has changed? a map showing dates and locations of prehistoric archeological sites and migration routes from africa into.