Concept explainers
To review:
The experimental design to test the hypothesis that the cuticle of
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)
- What are the checkpoints in the completion of the life cycle of nematomorphs? Would it be easier if all their host is aquatic? Why or why not? Note: This is about Likely Nematode Relatives (invertebrates zoology)arrow_forwardIf you had minimal resources to survive a disease related quarantine, as we’re currently experiencing, which class of invertebrates would be more beneficial and why? This can be demonstrated in any form.arrow_forwardWhat structure in the Entamoeba histolytica is sometimes called a "false foot" and has a similar function to the musculoskeletal system of humans because it helps the amoeba move through its environment? Pseudopod Contractile Vacuole Cell Membrane Nucleusarrow_forward
- Describe Loeffler’s syndrome. Which of the nematodes is the condition associated with?arrow_forwardAmoebae extend pseudopodium which is a temporary actin-based protrusion of their body membrane to probe and crawl. Elaborate the directed movement of Amoebae response to extracellular chemical stimulants. Cite a specific chemical stimulant to elucidate your idea.arrow_forwardIs it more beneficial for Neodermata to have one host or two hosts? Neodermatahas two classes: class Trematoda and class Monogenea. Class Trematoda has the subclass Digenea, which has organisms that live through at least two different hosts. An example of this is Fasciola hepatica, the sheep's liver fluke. Class Monogenea has organisms that only need to live through one host. Is it better to have a simple or complex life cycle? Which lives longer? Has more energy? Does more damage or good?arrow_forward
- Describe the cells that make up the ascending loop of Henle. Include a clear explanation of how the cell’s unique features enable its unique action.arrow_forwardDeep water coral, also known as cold water coral, are most often stony corals belonging to the phylum Cnidaria. One of the most common cold water corals is Lophelia pertusa. Fishing methods such as deep water trawling affect Lophelia pertusa negatively. These methods tend to break corals apart and destroy reefs. Please let me know if this bolded sentence should be written in the active or passive voice and provide an example. Thank you!arrow_forwardA) State the function of the following external parts of the genus Cambarus (Class Crustacea): walking legs: opening of sperm duct: gills: excretory pore: abdomen: eyes What are the hairlike appendages called that anchor into the skin of annelids? What structures do earthworms have to help dispose of nitrogenous wastes? Briefly describe how earthworms reproduce and what structures are involved.arrow_forward
- Which of the following is FALSE regarding lamellipodia? their formation is stimulated by extracellular signals their formation requires motor protein activity they extend at the leading edge of crawling cells their formation requires activity of actin-binding proteins they contain branched networks of actin filamentsarrow_forwardWhy did researchers present unshelled periwinkles to the crabs?What do the results of this part of the experiment indicate?arrow_forwardParasitic flatworms have very different bodies than free living flatworms. Which of the following are differences that you would expect to see between these two kinds of worms? (choose all that apply)**Note that all correct answers are required for credit. Parasitic flatworms will likely lack a digestive system Parasitic flatworms will lack sensory structures Parasitic flatworms will produce more eggs Parasitic flatworms will have well developed eyesarrow_forward
- Biology: The Dynamic Science (MindTap Course List)BiologyISBN:9781305389892Author:Peter J. Russell, Paul E. Hertz, Beverly McMillanPublisher:Cengage Learning