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Ulleksa [173]
3 years ago
5

What does the equation npp = gpp − r represent?

Biology
1 answer:
sergejj [24]3 years ago
6 0
It is the Flow of energy, where R is the energy used in Respiration by the organisms, whose magnitude with Gross production equals to Net production.
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20 points and brainlest please help
sergeinik [125]
Red because it has more volume and more amount of matter
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3 years ago
Explain why DNA is called a molecular clock.
hammer [34]

The molecular clock is a figurative term for a technique that uses the mutation rate of biomolecules to deduce the time in prehistory when two or more life forms diverged. The biomolecular data used for such calculations are usually nucleotide sequences for DNA or amino acid sequences for proteins.

Explanation:

5 0
3 years ago
the first cells likely to encounter a pathogen, such as phagocytes, are professional antigen presenting cells (apcs). this means
Zepler [3.9K]

Professional antigen-presenting cells, such as phagocytes, are the first cells to encounter a pathogen (apcs). This means they have the ability to activate cells of the adaptive immune system.

<h3>What is meant by Pathogen?</h3>
  • A pathogen is an organism that infects its host with disease, and the severity of the disease symptoms is referred to as virulence.
  • Pathogens include viruses, bacteria, unicellular and multicellular eukaryotes, and a wide range of other organisms.
  • The bone marrow of an average healthy adult generates 100 billion new neutrophils per day. Because there are so many neutrophils in the body at any given time, they are often the first cells to reach the site of an infection.
  • Long thought to be a component of the innate immune system, complement has recently emerged as an important regulator of the adaptive immune response.

Therefore the correct option is D)  can activate cells of the adaptive immune system.

To learn more about Pathogen, refer to:

brainly.com/question/1008643

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8 0
11 months ago
Select one organism that lives in the Ecosystem and describe three adaptations the organism possesses. Explain why the adaptatio
lesya [120]

Explanation:

Hey, there!

The eco-system consists of various type of organisms in tge ecosystem. The all type of organism as producer, decomposer, consumers live in ecosystem.

Three adaptations of organism are:

  • By losing and gaining of organs: Some of the animals lose their organs to survive in some places like yak have more hair to survive in cold places.
  • By changing the colour of body: Some animals such as grasshopper changes their colour to survive in places.
  • By modification of organs: some animals modify their organs to survive such as legs and beak of ducks are modified to survive in swim and search foods.

The importance of adaptation are:

  • It helps organism to live a longer life.
  • The adaptation helps to make an organism fittest to any environment.
  • The adaptation helps an organism to search foods and live their life.

<em><u>Hope</u></em><em><u> </u></em><em><u>it helps</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em>

5 0
3 years ago
Creative examples of biotic and abiotic factors quick!
Ivanshal [37]

Answer:

<u>Some overall examples of biotic and abiotic factors are listed below.</u>

<u>Biotic factors: predators, competitors for food, competitors for space, parasitism, disease, animals, plants.</u>

<u>Abiotic factors: sunlight, wind, soil, atmosphere, water, temperature, humidity, UV radiation, salinity, pH levels.</u>

4 0
3 years ago
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