B. Antibiotics attack only bacteria.
Answer:
Option-A
Explanation:
Hunger is the sensation felt by the advanced organisms which show that the organisms now have to eat to survive. The feeling of hunger is generated when the vagal nerves from the gastrointestinal tract to the CNS.
The feeling of hunger is not psychological but is a physiological process that is controlled by the brain and the main neuron nucleus of the brain which controls the appetite of humans lies n the hypothalamus. The hypothalamus controls the opioid receptors and neurotransmitter which controls the appetite.
Thus, Option-A is the correct answer.
No. It was an idea that yielded common positive results. “Not a good theory” is biased terminology. New technology can yield new information, but it does not mean that it was not a good theory.
Long line fishing, drift nets, and trawling all produce an insignificant amount of by-catch is a false statement.
Explanation:
Bycatch fishing is "the incidental capture of non-target species” like sharks, dolphins, seabirds, marine turtles and other marine organisms while applying modern fishing gears like long line fishing, drift nets, or trawling.
Although, these inconspicuous modern fishing gears are highly efficient in catching the desired types of target fishes; these also catch significant amount of other marine species which travel along the line as a bycatch.
A huge number of exclusive marine fishes which are mostly under the endangered list and many juvenile fishes are caught as bycatch which are mostly thrown back dead overboard. Further these modern gears also endanger the marine structures like the coral reefs.
Answer:
They are classified into three orders: frogs and toads, salamanders and newts, and caecilians.
