Concept explainers
To review:
The experimental design to test the hypothesis that the cuticle of parasitic nematodes provides the protection from the acids and enzymes when reach in the
Introduction:
The nematodes are enclosed in an exoskeleton which is known as cuticle. The presence of cuticle is the structural key for the success and diversity of nematode species. The outermost layer of the cells in nematodes is covered from a complex extracellular matrix (cuticle). Cuticle plays an important role in maintaining the body shape, movement and functions as the primary interface with the outer environment. The cuticle helps in protection from the host digestive system.
To review:
The detailed plan for altering the plant’s growth and reproductive characteristics.
Introduction:
Plant breeders play key role by focusing on desirable traits with great potential to increase plant yield. Hence, new technologies must be developed to accelerate breeding through improving genotyping and phenotyping methods and by increasing the genetic diversity in breeding germplasm. Marker Assisted Selection (MAS) is a marker technology used for specific
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Biology: The Dynamic Science (MindTap Course List)
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- While studying the embryonic development of an organism, you determine that the blastopore of the developing gastrula has developed into a mouth. Based on the Animalia tree discussed in class, which one of the following phyla could this NOT be? A. Chordata B. Mollusca C. Porifera D. Annelida E. Arthropodaarrow_forwardDracunculus medinensis is a human-infecting nematode on the verge of extinction. What factors can prevent its extinction? Why it would be desirable to figure out how to preserve this species?arrow_forwardList two characteristics, which help us to distinguish Nematodes from Annelids.arrow_forward
- Based on the diagram, which of the following pairs of organisms have the closest evolutionary relationship? A. Radiolarians and Forams B. Diatoms and Euglenozoans C. Ciliates and Radiolarians D. Diplomonads and Euglenozoansarrow_forwardGive a conclusion The study of microorganisms and parasites also involves specimen collection for observation and further study. Collection of specimens of this type should be done in such a manner that the health care provider collecting the specimen should also be free from contamination and infection. In this manner, the specimen collection technique is of great use. Cellulose tape perianal swab is a method involved in the collection of pinworms scientifically known as Enterobius vermicularis, a common parasite thriving in the lower digestive tract of humans infecting most children and even in adults. Symptoms of this disease are itching around the anus. No serious medical consequences are caused by pinworms but constant itching may cause infection around the anus area. Urine sample collection is another form of specimen collection urine samples are collected for biochemical and microbial sampling. A proper method of urine sample collection is essential for correct…arrow_forwardWhy are parasitic infections of nematodes still common despite our understanding of their biology? Explain if these infections are due to the adaptations of these parasitic helminths or our lapses in their control and eradication.arrow_forward
- Which of the following is an example of an animal that has true tissues, has a coelom, is triploblastic, and is a Deuterstome? Question 8 options: a) Echinodermata and Chordata b) Cnidaria c) Ctenophora d) Placozoaarrow_forwardMAKE A RESULTS AND DISCUSSIONS OF: Microscopic Morphology of Protozoansarrow_forwardHow do humans get infected with parasitic nematodes? Discuss two routes of transmission in humans.arrow_forward
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