This is the common name for photosynthetic protists that occur in unicellular, colonial and multicellular form; many of their names are derived from the pigments that they carry in their cells.

This state is talking about Algae.

Indeed, the algae can be classified according to their pigmentation. In the broadest sense of the term, algae gather:

* Prokaryotic organisms: Cyanobacteria (formerly called "blue-green algae" or Cyanophyceae);

* Eukaryotes:

-various groups with unicellular species (Euglenophytes, Cryptophytes, Haptophytes, Glaucophytes, etc.),

-other groups with unicellular or multicellular species:

   "red algae" or Rhodophyta,

   Stramenopiles (including diatoms and "brown algae" or Phéophycées),

-and finally, plants quite close to terrestrial plants: "green algae", which include, among others, Ulvophyceae.

The correct answers are 1. Using stem cells to treat disease, and 3. Diagnosing genetic diseases.

Explanation

Biotechnology is a science that covers different areas such as chemistry, biology, and technology, to improve or facilitate procedures related to living organisms by manipulating living or parts of these in areas such as agriculture, medicine, and pharmacy. In the area of medicine, biotechnology is in charge of working with DNA to improve people's health. Also, it is in charge of investigating the cells to know in depth the problems that trigger diseases or genetic problems. Another use of biotechnology in medicine is through the use of stem cells in treatments for self-renewal or regeneration of damaged tissues. So, the correct answers are 1. Using stem cells to treat disease, and 3. Diagnosing genetic diseases.