Radiolarians - protozoan, Biology

Assignment Help:

Radiolarians - Protozoan

Radiolarians are entirely marine planktonic species with spherical bodies and radiating pseudopodia known as axopods. The spherical body is divided into ipner and outer parts. The inner region contains one to many nuclei and is surrounded bya central capsule with a membranous wall. This is a distinctive feature of radiolarians.

2214_Radiolarians.png

Figure: Skeletal structures of radiolarians Concentric spheres along with radiating spines are common patted

The capsule membrane is perforated with openings through which the inner capsule cytoplasm becomes continuous with the cytoplasm of the outer division of the body. This outer cytoplasm is calfed calymma. Their skeleton is formed of silicon dioxide or strontium sulphate organized in the form of lattice spheres or radiating spines.


Related Discussions:- Radiolarians - protozoan

How many chromosomes and dna molecules found per cell, A cell in G1 of inte...

A cell in G1 of interphase has 12 chromosomes. How many chromosomes and DNA molecules will be found per cell when this original cell progresses to the G2?

Angiosperms, why are the microspores in groups of four?

why are the microspores in groups of four?

What are butane and 2-methyl-propane, Butane and 2-methyl-propane are: Sele...

Butane and 2-methyl-propane are: Select one: a. Alcohols b. geometric isomers c. structural isomers d. Stereoisomers e. All of the above

Differance among subphylum chaetognatha and urochordata, Explain differance...

Explain differance between Subphylum Chaetognatha and Subphylum Urochordata? Subphylum Chaetognatha: Larval stages of this small group share some of the characteristics with

Explain the prevalence of iron deficiency anaemia, Explain the Prevalence o...

Explain the Prevalence of iron deficiency anaemia? We can find out about the prevalence of anaemia if we know what percentage of population is suffering from anaemia. The WHO h

What is dengue, What is dengue? Dengue, or dengue fever, is an epidemic...

What is dengue? Dengue, or dengue fever, is an epidemic disease in some countries (for instance, in Brazil), and its most dangerous form is hemorrhagic dengue. It is caused by

Drawbacks of lamellar model, Drawbacks of Lamellar model This model ...

Drawbacks of Lamellar model This model does not explain the elasticity of PM. Although this model says that PM is elastic but it also states that head of lipid molecules is

Biological significance of incompatibility, Biological Significance of Inco...

Biological Significance of Incompatibility Both interspecific and intraspecific incompatibility determines the degree of inbreeding and out breeding of plants. Self-incompati

Define chagas and arrhythmogenic right vent cardiomyopathy, Chagas' Cardiom...

Chagas' Cardiomyopathy It is common in south and Central America and is caused by Trypanosoma cruzi. Arrhythmogenic Right Ventricular Cardiomyopathy (ARVC) It is mark

Define nutrient requirements and principles of meal planning, Define nutrie...

Define nutrient requirements and principles of meal planning? In this , we started our discussion with the school age and its characteristics. We learnt about the physical grow

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd