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

Pre-procedural mouth rinse, Pre-procedural mouth rinse Patients' use of...

Pre-procedural mouth rinse Patients' use of a an anti-microbial mouthwash of 0.12% chlorhexidine gluconate solution for 30 seconds prior to intra-oral procedures will reduce th

Describe the phylum arthropoda and metamorphosis, Describe the Phylum Arthr...

Describe the Phylum Arthropoda and Metamorphosis? More than one million different species of arthropods are estimated to exist on the earth today-more than all other animal spe

Chromosomes and chromatin strands are present in stage, Drosophila has 4 bi...

Drosophila has 4 bivalents (homologous chromosomes) formed at Meiosis I. How many chromosomes and chromatin strands are present in each of the following stages- Anaphase of mito

Energy flow in an eco-systems, The capacity to do work is known as energy. ...

The capacity to do work is known as energy. In an ecosystem energy flows through one organism to another in the form of food. The flow of energy is uni-direction and non cycle and

Asexual reproduction and cloning in plants, before stem cuttings are plante...

before stem cuttings are planted the cut end of the stem is often dipped in a hormone powder .what is the point of this?

Explain briefly Creutzfeldt-jakob disease (cjd), Normal 0 false...

Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4

Explain advantages of using fungi as a source of protein, Organism:-Fungi  ...

Organism:-Fungi  Advantages:- Easy to harvest from culture medium. Texture of the fungi improves the functional properties of proteins. Disdvantages:-

COPD, descirbe the role of allied health profession all providing pulmonary...

descirbe the role of allied health profession all providing pulmonary rehabilitation during treatment of emphysema

Carbohydrates, what is the structural formula for Galactose?

what is the structural formula for Galactose?

Explain pro-oxidants - lipid oxidation, Explain Pro-Oxidants Transitio...

Explain Pro-Oxidants Transition metals, particularly those possessing two or more valency states and a suitable oxidation - reduction potential between them (e.g., cobalt, cop

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