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Mixotrophic nutrition is present in (a)...

Mixotrophic nutrition is present in
(a) Amoeba
(b) Navicula
(c) Plasmodium
(d) Euglena

A

Amoeba

B

Navicula

C

Plasmodium

D

Euglena

Text Solution

AI Generated Solution

The correct Answer is:
To determine which organism exhibits mixotrophic nutrition, we need to analyze the given options based on the definition of mixotrophic nutrition. Here’s a step-by-step solution: 1. **Understand Mixotrophic Nutrition**: Mixotrophic nutrition is a type of nutrition where an organism can utilize both autotrophic (self-feeding through photosynthesis) and heterotrophic (feeding on other organisms) methods to obtain energy. 2. **Evaluate Each Option**: - **(a) Amoeba**: Amoeba is known to be entirely heterotrophic, meaning it feeds on other organisms. Therefore, it does not exhibit mixotrophic nutrition. - **(b) Navicula**: Navicula is a type of diatom that is primarily autotrophic, meaning it produces its own food through photosynthesis. This also does not qualify as mixotrophic nutrition. - **(c) Plasmodium**: Plasmodium is a parasitic organism that is heterotrophic, as it feeds on the host. It does not exhibit mixotrophic nutrition. - **(d) Euglena**: Euglena is unique in that it can perform photosynthesis (autotrophic) during the day and can also absorb nutrients from its surroundings (heterotrophic) when light is not available. This dual capability qualifies Euglena as a mixotrophic organism. 3. **Conclusion**: Based on the analysis, the only organism that exhibits mixotrophic nutrition is **(d) Euglena**. ### Final Answer: (d) Euglena
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