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iren [92.7K]
3 years ago
12

What is the best description of organisms of the Precambrian era?

Biology
1 answer:
7nadin3 [17]3 years ago
4 0
Sinlge-celled organisms and soft, boneless animals. Back then organisms were single-celled and simple.
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A small bird gathers pollen and nectar for food, but at the same time is
Angelina_Jolie [31]

Answer:

Mutualism

Explanation:

In biology, the term <em>symbiosis </em>refers to close and often long-term interactions between organisms that belong to different species. There are three main types of symbiotic relationships:

  • mutualism - both organisms benefit from their relationship
  • commensalism - one organism benefits, while the other doesn't benefit or suffer any harm
  • parasitism - one organism causes harm to the other

In the given scenario, both the bird and plant benefit from their relationship. The bird gets food, while the plant reproduces more easily. This is why their relationship is an example of mutualism.

7 0
3 years ago
How will the movement of water affect a survey if it is transferred from a hypotonic solution to a hypertonic solution?
Inga [223]

Answer:

The cell will shrink

Explanation:

In an hypotonic solution, water moves into the cell through the process of osmosis. This shall be due to the high concentration of water in the hypotonic solution than that in the cytoplasm.

Due to this movement, the cell bulges out.

If the cell is transferred to a hypertonic solution, water shall move out of the cell thereby making the cell shrink. This is because water concentration in the cytoplasm shall be higher than that in the hypertonic solution.

Effect to the survey shall be an experience of the exact opposite of the previous immersion.

3 0
3 years ago
When assisting a child with ventilation:
Zolol [24]
Hello There!

Based on my First Aid classes the answer is D. All of the above.
If someone turns unconscious, you'd have to perform CPR and call an emergency service as soon as possible.

Hope This Helps You!
Good Luck :) 

- Hannah ❤
7 0
4 years ago
Who help me about this?
weqwewe [10]

Answer:

Its easy Ana

Explanation:

6 0
4 years ago
Read 2 more answers
Identify the building blocks of proteins and nucleic acids
stellarik [79]
The building blocks of proteins is Amino acids and nucleic acids is Nucleotides
6 0
3 years ago
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