Define class – arachnida, Biology

Assignment Help:

Define Class – Arachnida?

The class Arachnida (Arachnida = spider) has terrestrial and few aquatic animals. It
includes spider, scorpions and mites.

1. Prosoma bears. six pair of appendages: one pair of clielicerae, one pair of pedipalpi and four pairs of walking legs.
2. Abdomen is generally devoid of appendages.
3. Respiratory organs are tracheae, book lungs and book gills.
4. Excretion is performed by malpighian tubules and coxal glands.
5. Sexes are separate but sexual dimorphism is not conspicuous.

So, you have refreshed your background knowledge of1.he characters of subphylum Chelicerata and class Arachnida. Let us now study individuals examples under the class Arachnida.


Related Discussions:- Define class – arachnida

What are the oligosaccharides and monosaccharides, Q. What are the oligosac...

Q. What are the oligosaccharides, monosaccharides and polysaccharides? Monosaccharides are simple molecules of carbohydrates that cannot be broken down into smaller molecules o

Incomplete dominance (1:2:1), INCOMPLETE DOMINANCE (1:2:1) Sometimes tw...

INCOMPLETE DOMINANCE (1:2:1) Sometimes two genes of allelomorphic pair do not show dominant-recessive relationship, but when present simultaneously (or come together), they sho

Why plants need to do exchange gases with the environment, Why plants need ...

Why plants need to do exchange gases with the environment? The Plants need to do gas exchange because they create aerobic cellular respiration (like animals) and they need to r

What is septal ablation, What is Septal Ablation (TASH/PTSMA) ? This is...

What is Septal Ablation (TASH/PTSMA) ? This is a nonsurgical interventional treatment. The septal myocardium supplied by 1 st septal branch of left anterior descending artery

Sample titration - estimation of nitrogen & protein content, Define Sample ...

Define Sample Titration - Estimation of nitrogen and protein content? Take the given ammonium sulfate solution into a 100 ml volumetric flask and dilute to the mark with distil

Explain process of fatty acid composition, Explain process of Fatty acid co...

Explain process of Fatty acid composition We know fats/oils are made up of fatty acids. The number, position and geometry of double bonds within the fatty acids affect the rate

Explain inhibitors, Explain Inhibitors Inhibitors: Citrate synthase i...

Explain Inhibitors Inhibitors: Citrate synthase is inhibited by ATP, NADH, succinyl CoA and acyl CoA derivative of fatty acids (fatty acyl CoA). The rate of the reaction  is

Nutritional management for lactose intolerance, Q. Nutritional Management f...

Q. Nutritional Management for lactose intolerance? Diagnostic tests are available that can give information about the level and activity of the lactase enzyme. Depending on the

Define comprehensive dietary management regime of patient, Define Comprehen...

Define Comprehensive Dietary Management Regime of Patient? A comprehensive dietary management regime of the patient should be based on the patient profile as gathered pre and p

Important herbaria, Q. Important Herbaria? The herbarium is a place whe...

Q. Important Herbaria? The herbarium is a place where dried and mounted specimens are stored according to any recognised system of classification. Special attention is paid tow

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