Representative examples of soil microbiota include______________________?
Show answer Hide answer
Answer: A. Enchytrids
Explanation
Enchytraeids are small oligochaete worms representing a component of the soil microfauna and biota. These organisms belong to the annelid group and actively inhabit organic rich soil layers. Soil ecologists recognize enchytraeids as vital biological components contributing to subterranean ecological networks. Soil microbiota and microfauna encompass diverse microscopic and small invertebrate organisms residing underground. These living components include bacteria fungi protozoa nematodes and small segmented earthworm relatives. Biological soil health depends heavily on the balanced interactions among these diverse microbial populations.
Soil biota play an essential role in decomposing organic matter and cycling vital nutrients. Farmers monitor soil biological activity to assess fertility and overall agricultural land productivity. Healthy agricultural soils support thriving microbial communities that enhance plant growth and resistance. Fungus represents a major kingdom of spore producing organisms distinct from soil invertebrate animals. Bacteria comprise single celled prokaryotic microorganisms lacking the complex cellular structures of multicellular animals. Plants are large autotrophic eukaryotic organisms forming the foundation of above ground terrestrial ecosystems.
- Subject
- Agriculture
- Category
- Agriculture
- Topic
- —
- Difficulty
- medium
Related questions
Q1. Ethylene exhibits horticultural applications such as___________________?
Show answer Hide answer
Answer: D. All the above
Ethylene is a plant hormone used in horticulture to induce fruit maturity, initiate flowering, and degreen citrus fruit. It acts as a signaling molecule that triggers biochemical ripening pathways in climacteric fruit sp...
Q2. Eugenol represents a vital aromatic component derived from the oil of__________________?
Show answer Hide answer
Answer: B. Clove
Eugenol is a primary aromatic phenolic compound extracted from clove oil. It provides the distinct warm scent and medicinal properties characteristic of clove extracts. This naturally occurring phenylpropanoid is synthes...
Q3. A pupal type characterized by free appendages not fused to the body wall is designated_________________?
Show answer Hide answer
Answer: C. Exarate
Exarate pupae feature free appendages that are not fused to the main body wall. This structural characteristic allows the developing insect parts to remain clearly separate and movable. Entomologists classify pupal stage...
Q4. Chemically, an ester shares functional similarities with______________________?
Show answer Hide answer
Answer: A. Alcohols
Esters are chemical compounds related structurally to alcohols and organic acids through condensation reactions.
Q5. An overabundance of nitrogen results in_____________________?
Show answer Hide answer
Answer: A. Delays ripening
An excess of nitrogen promotes vegetative growth at the expense of maturity thereby delaying fruit ripening. High nitrogen levels keep plants in a prolonged vegetative state instead of transitioning to reproductive phase...
Q6. Inhibition of sprouting in stored potatoes, onions, and garlic to prolong shelf life can be accomplished using a radiation dose of_________________?
Show answer Hide answer
Answer: C. 0.05-0.15 kGy
Sprouting in stored root crops and bulbs can be effectively inhibited using low gamma radiation doses. The applied radiation disrupts cellular division within the meristematic tissues of the tubers. Applying 0.05 to 0.15...