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

Explain in brief about life style modification, Explain in brief about Life...

Explain in brief about Life style modification Life style modification in simpler words, means  diet control and doing exercises. Diet control and exercise should be planned on

Cells, describe the cell theory and its exception

describe the cell theory and its exception

What are cells with a delimited nucleus called, What are cells with a delim...

What are cells with a delimited nucleus called ? What are the main elements of the nucleus? Cells with delimited nucleus are known as eukaryotic cells. Organisms composed of on

Biota of pelagic zone, Biota of Pelagic Zone Pelagic region constitute...

Biota of Pelagic Zone Pelagic region constitutes 90 per cent of the total ocean surface and is less rich in species and numbers of organisms than the two regions discussed bef

Determine the eukaryotic replication origins, Which of the following statem...

Which of the following statements is wrong regarding eukaryotic replication origins? A. More origins are licensed and initiated within embryonic cells than in adult cells. B

How does the hypophysis-corpus luteum negative feedback work, How does the ...

How does the hypophysis-corpus luteum negative feedback work? What is the name given to the atrophied corpus luteum after this feedback process? After ovulation the estrogen an

What are the fundamental constituents of the cell membrane, Q. What are the...

Q. What are the fundamental constituents of the cell membrane? The cell membrane is formed of lipids, carbohydrates and proteins. The membrane lipids are phospholipids, a sp

Orifices of heart, Atrio-ventricular Orifices The right and left atrio-v...

Atrio-ventricular Orifices The right and left atrio-ventricular orifices are oval apertures. The openings lie in a plane that is almost vertical with a slight downward inclinati

Explain oxygen concentration - lipid oxidation, Oxygen concentration Wh...

Oxygen concentration When oxygen is abundant, the rate of oxidation is independent of oxygen concentration, but at very low oxygen concentration, the rate is approximately prop

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