The ventral sclerotized plate region of an insect body segment is designated___________________?
Show answer Hide answer
Answer: C. Sternum
Explanation
The sternum is the ventral plate located on the underside of an insect body segment. This sclerotized cuticular plate protects the ventral visceral organs from physical damage. Sternal plates provide attachment points for internal muscles controlling leg and abdominal movement. Insect segments feature a dorsal tergum, lateral pleura, and a ventral sternum. Sclerotization strengthens these plates while intersegmental membranes ensure body flexibility. Ventral plates often feature diagnostic spines or pits used in taxonomic identification.
Taxonomists examine sternal plate structures to identify specific insect genera and species. Exoskeletal protection safeguards internal nerve cords running along the insect ventral side. Pest management researchers study ventral morphology to understand insect physical adaptations. Pleuron designates the lateral sclerotized plate region located on insect body segments. Tergum identifies the dorsal upper plate situated on the back of insect segments. The option for none of the above is incorrect because sternum is the correct answer.
- Subject
- Agriculture
- Category
- Agriculture
- Topic
- —
- Difficulty
- medium
Related questions
Q1. The dorsal sclerotized plate on an insect segment is designated__________________?
Show answer Hide answer
Answer: A. Tergum
The tergum forms the dorsal sclerotized upper plate of an insect body segment. Sclerotization hardens this cuticular plate to provide structural support and muscle attachment. Dorsal terga protect internal organs while m...
Q2. The scientific study of insect form and structure is known as __________________?
Show answer Hide answer
Answer: A. insect morphology
Insect morphology is the scientific branch focused on studying external forms and physical structures. Researchers analyze body segmentation, appendages, and sensory structures to classify species. Detailed anatomical co...
Q3. The concentration of a toxic substance required to cause mortality in 50% of exposed organisms is termed _________________?
Show answer Hide answer
Answer: A. LC50
LC50 represents the lethal concentration required to kill 50% of a test population. This standard toxicological metric measures chemical toxicity in environmental media like water or air. Researchers use concentration va...
Q4. Absolute, complete resistance against any environmental adversity is designated_________________?
Show answer Hide answer
Answer: A. Immunity
Immunity represents complete, absolute resistance against any environmental adversity or pathogen attack. Internal physiological defense mechanisms neutralize foreign invaders before they cause disease symptoms. Insects...
Q5. The academic discipline dedicated to the study of insects is designated ?
Show answer Hide answer
Answer: A. Entomology
Entomology is the dedicated scientific discipline focused entirely on the study of insects. Researchers in this field explore insect classification, ecology, physiology, and pest management. Advancements in entomology pr...
Q6. The synchronized application of all available management tactics to maintain pest density below the economic injury level is called:_______?
Show answer Hide answer
Answer: D. IPM
Integrated Pest Management coordinates multiple tactics to keep pest populations below economic injury levels. This strategy minimizes reliance on synthetic chemical pesticides by prioritizing ecological balance. Combini...