Archive | Animals

Embryological Characteristics of Protostomes and Deuterostomes

The upcoming discussion will update you about the difference between embryological characteristics of Protostomes and Deuterostomes. Difference # Protostomes: 1. Cleavage of Protostomes are spiral, determinate or mosaic. Bilateral-mosaic cleavage of some protostomes (e.g., nematodes). 2. In Protostomes, the blastopore either becomes the mouth, the anus forms a new structure (e.g., most of molluscs) or the blastopore gives rise to [...]

By |2016-05-27T11:36:15+00:00May 27, 2016|Animals|Comments Off on Embryological Characteristics of Protostomes and Deuterostomes
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7 Parasitic Forms of Flagellates | Phylum Protozoa

List of seven parasitic forms of flagellates:- 1. Giardia Lamblia 2. Trichomonas Hominis 3. Trichomonas Vaginalis 4. Haemoflagellates 5. Trypanosoma Cruzi 6. Trypanosoma Gambiense 7. Leishmanias. Parasitic Form # 1. Giardia Lamblia: It is also known as Giardia intestinalis and it lives as parasite in the intestine of man and causes a disease called giardiasis. The distribution is cosmo­politan. Trophozoites [...]

By |2016-05-27T11:36:15+00:00May 27, 2016|Phylum Protozoa|Comments Off on 7 Parasitic Forms of Flagellates | Phylum Protozoa
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Amoeba, Euglena and Paramoecium | Phylum Protozoa

Learn about the comparison among Amoeba, Euglena and Paramoecium. Comparison # Amoeba: 1. Amoeba lives in freshwater ponds and streams. 2. Morphology of Amoeba: (a) Shape: Irregular (b) Size: About 0.25 mm in diameter (c) Limiting membrane: Plasmalemma—thin and elastic. (d) Cytoplasmic differentiation: Ectoplasm clear and non-granular compared to endoplasm. (e) Cytoplasmic inclusions and organelle: Grains of sand and granules [...]

By |2016-05-27T11:36:15+00:00May 27, 2016|Phylum Protozoa|Comments Off on Amoeba, Euglena and Paramoecium | Phylum Protozoa
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