The options are not complete
Salmon fish hatcheries add a harmless perfume (morpholine) to a stream when they release young fish. When the fish mature, they attract them back to the home stream by using this chemical (in nature the fish smell the unique odors of soil and trees along the home stream). In effect, the hatchery biologist is using
A. the fish's inborn instincts to relocate its own stream.
B. the fish's inborn instincts to relocate its own stream.
C. an experiment based on the ability of fish to learn by trial and error.
D. chemotropisms.
E. Imprinting
Answer:
E. Imprinting
Explanation:
Imprinting is kind of rapid responsive learning occurring at a particular stage in life, whereby the organism establishes a behavioral pattern such as recognition or attraction to it kinship or a substitute.
In the Salmon fish hatcheries(a building where hatching of fish or poultry eggs is artificially controlled for commercial purposes), the addition of a harmless perfume (morpholine) to a stream when they release young fish is a substitute to the Salmon fish kinship. When the fish mature, i.e at a particular stage of their life, they attract them back(a form of attraction to it own kind) to the home stream by using this chemical.
Answer:
cyclonic storm.
hurricane.
tempest.
tropical cyclone.
typhoon.
Explanation:
those are the alternative names for tropical storms
The otorhinolaryngologist (or your ear-nose-throat, ENT specialist), will be able to isolate a cause such as abnormalities in muscle contraction, blood vessels or the middle ear. Tinnitus Peritonsillar abscess is commonly encountered clinical entities presenting in everyday practice of otorhinolaryngologist .
"During an asthma attack, the muscles surrounding the airways contract, limiting the amount of air supply to the lungs. The lack of sufficient air supply results in a choking sensation. Asthma attacks induce the secretion of sputum and mucus, also which causes the airway to constrict even more, making the asthma attack worse." - hadassah-med.com
Answer:
B) MALT or mucosa-associated lymphatic tissue
Explanation:
Lymphatic nodules are the secondary lymphatic tissues that lack any surrounding capsule and are present like egg-shaped tissue masses. The lymphatic nodules present in the lining of some organ systems such as gastrointestinal tract, urinary system, and the respiratory airways are called mucosa-associated lymphatic tissue (MALT) as these lymphatic tissues are present in their mucous membranes.
For example, Peyer patches and tonsils. Peyer's patches are the lymphatic nodules present in intestinal wall, and the appendix. Tonsils are the secondary lymphatic tissues present in a ring about pharynx.