Holozoic nutrition is characteristic of which algae group :-

a)
Xanthophyta

b)
Bascillariophyta

c)
Euglenophyta

d)
Cyanophyta

Correct answer is option 'C'. Can you explain this answer?

Question

Holozoic nutrition is characteristic of which algae group :-a)Xanthophytab)Bascillariophytac)Euglenophytad)CyanophytaCorrect answer is option 'C'. Can you explain this answer?

Answer

Holozoic nutrition means plant like nutrition and euglenoids are connecting link between plant and animals so some characteristic like plant and some like animal....

Answer

Paramecium is a unicellular organism with a shape resembling the sole of a shoe. It ranges from 50 to 300um in size which varies from species to species. It is mostly found in a freshwater environment. It is a single-celled eukaryote belonging to kingdom Protista and is a well-known genus of ciliate protozoa.

Answer

The correct answer is option 'A', Paramecium.

Paramecium is a unicellular organism that belongs to the phylum Ciliophora. It is characterized by its unique shape, which is elongated and covered in tiny hair-like structures called cilia. Paramecium exhibits a high degree of differentiation in its body structure and specialized organelles, making it the organism with the highest degree of differentiation among the given options.

Let's explore in detail why Paramecium has the highest degree of differentiation:

1. Cellular Organization:
- Paramecium exhibits a high level of cellular organization. It has distinct structures such as the oral groove, cytoproct, and contractile vacuole, which serve specific functions.
- The oral groove is responsible for food intake, while the cytoproct functions in waste elimination. The contractile vacuole helps in osmoregulation.

2. Specialized Structures:
- Paramecium possesses specialized structures that are responsible for various functions. For example, the cilia covering its body aid in movement and feeding.
- The pellicle, a protective layer, maintains the shape and structure of Paramecium.
- Paramecium also has a specialized structure called the micronucleus, which is involved in genetic exchange during sexual reproduction.

3. Complex Organelles:
- Paramecium contains various complex organelles that perform specific functions. For instance, the oral groove leads to a gullet, which houses food vacuoles for digestion.
- The contractile vacuole plays a crucial role in maintaining water balance by expelling excess water from the cell.
- Paramecium also possesses a well-developed endoplasmic reticulum and Golgi apparatus, which are involved in protein synthesis and transport.

4. Differentiation of Nucleus:
- Paramecium has two types of nuclei: the macronucleus and the micronucleus. The macronucleus controls metabolic activities, while the micronucleus is involved in genetic exchange during conjugation.

In summary, Paramecium exhibits a high degree of differentiation with specialized structures, complex organelles, and different types of nuclei. Its unique body structure and functions make it the organism with the highest level of differentiation among the given options.

Answer

Option (c) is correct

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