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steposvetlana [31]
2 years ago
14

How do animals in the surface zone keep from sinking?

Biology
1 answer:
Nonamiya [84]2 years ago
3 0
Because they are on a surface, 
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1.<br> Which of the following structures is not found in<br> bacteria?
Nady [450]

Answer:

Organelles

Explanation:

Bacteria are a type of biological cell that has an Intracellular or internal structure.

Structural components are located in bacteria, and we can find there DNA, ribosomes, cell wall and membrane, surface layer and cytoplasm.

In bacteria structural components aren't found '<u>The nucleus</u>' and that is a membrane-enclosed organelle.

6 0
3 years ago
The hay included as part of the culture medium provided a food source for bacteria. Bacteria are a good food source for some typ
lions [1.4K]

Answer:

  • Protozoans → would not have survived because they have no way to produce their own food → Heterotrophs
  • Algae → would have survived without this food source → Heterotrophs

Explanation:

The protist kingdom is composed of two main groups.  The principal difference between them is that algae can produce their own food, while protozoans need to ingest other organisms or organic molecules to survive.

  • Algaes are autotroph
  • Protozoans are heterotroph

<u>Protozoans</u>:

Microscopic unicellular organisms, eukaryotic and heterotrophs -predators or detritivores-. Most of them are aquatic free-living organisms, but some species are parasites. They feed on<u> bacteria</u>, other organic wastes, and other microscopic organisms. The phagocytosis process is normally used to ingest the food, invaginating their cell membrane.  

<u>Algae</u>:

Eukaryotic micro- or macroscopic organisms. Autotroph and photosynthetic. They might be either unicellular or pluricellular. They use sunlight to synthesize organic matter from water, CO₂, and mineral salts. Unicellular ones can be free-living or associate with others to form colonies. They are part of the phytoplankton and are ingested by heterotrophic organisms. Pluricellular algae do not create real tissues but they compose a tale. The depth at which they inhabit depends on the pigments they produce. All of them inhabit fresh or sea waters.

8 0
3 years ago
CAN SOMEONE PLEASE HELP ME WITH THIS SCIENCE QUESTION I WILL MARK YOU BRAINLIEST THANK YOU !!!
Makovka662 [10]

Answer:

The answer is B non-renewable

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2 years ago
Sperm are the only human cells to have _____.
Delvig [45]

Answer:

flagella.

Explanation:

6 0
3 years ago
The -- states that the cell is the basic unit of a living thing
Artemon [7]
<span>the cell is the basic unit of a living the</span> cellular level of an organism is where the metabolic processes occur and keep the organism alive that's why it is referred to the basic unit of a living thing
5 0
3 years ago
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