Tag Archives | Living Organisms

Types of Mimicry | Adaptation

The following points highlight the two main types of mimicry. The types are: 1. Protective Mimicry 2. Aggressive Mimicry. Type # 1. Protective Mimicry: Protective mimi­cry is divisible into two categories: (a) Concealing mimicry: Most of the pro­tectively mimic forms exhibit devices of concealing themselves in order to escape the clutches of enemies. Some insects ex­hibit protective resemblances to objects [...]

By |2016-10-13T19:29:47+00:00October 13, 2016|Adaptation|Comments Off on Types of Mimicry | Adaptation

Difference between Spermatogenesis and Oogenesis | Embryology

The upcoming discuss will update you about the difference between spermatogenesis and oogenesis. Difference # Spermatogenesis: 1. Growth phenomena in nucleus and cytoplasm are not pronounced in spermatocytes. 2. Each spermatocyte produces four functional spermatids of equal size. 3. During maturation, (i) Nucleus remains small which may contract during spermiogenesis into a compact elongated mass, (ii) Nuclear fluid is small [...]

By |2016-10-13T19:29:47+00:00October 13, 2016|Embryology|Comments Off on Difference between Spermatogenesis and Oogenesis | Embryology

Germ Cells: Meaning, Development and Migration | Embryology

In this article we will discuss about:- 1. Meaning of Germ Cells 2. Development of Germ Cells 3. Migration 4. Fate 5. Transformation 6. Spermatogenesis 7. Oogenesis. Contents: Meaning of Germ Cells Development of Germ Cells Migration of Germ Cells Fate of Germ Cells Transformation of Germ Cells Spermatogenesis of Germ Cells Oogenesis of Germ Cells 1. Meaning of Germ [...]

By |2016-10-13T19:29:47+00:00October 13, 2016|Embryology|Comments Off on Germ Cells: Meaning, Development and Migration | Embryology
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