Answer:
respiratory system
Explanation:
The function of the respiratory system is to move two gases: oxygen and carbon dioxide.
N an experiment, suppose that the wings of fruit flies were clipped short for fifty generations. The fifty-first generation emerged with normal-length wings. This observation would tend to disprove the idea that evolution is based on
a. inheritance of natural variations
b. inheritance of acquired characteristics
c. natural selection
d. survival of the fittest
Inheritance of acquired characteristics. Thus, option "B" is correct.
<h3 /><h3>What is inheritance of acquired characteristics?</h3>
For fifty generations wings of fruit flies were clipped. Hence they acquired this trait in their lifetime and not genetically. If acquired characteristics were capable of passing on to next generation, 50 generations would have been enough to inculcate this clipped wing trait in fruit flies. Despite it, the fifty-first generation did not have clipped wings.
Hence evolution can not occur without genetic variation. A character simply acquired in a lifetime does not create a difference in germ cells and hence is not enough to be passed on to next generation or cause evolution
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Answer:
Communicate with one another by means of solvent variables.
Explanation:
Numerous microbes are known to coordinate their pleasant activities and physiological techniques through a framework called majority detecting in which bacterial cells talk with each other by releasing, detecting and responding to minimal diffuse-able banner particles. The limit of microscopic organisms to give and carry on as a get-together for social correspondences like a multi-cell animal has given basic favorable circumstances to microbes in have colonization, plan of bio-films, guard against contenders, and acclimation to developing circumstances. Basically, various QS-controlled activities have been related with the hurtfulness and pathogenic capacity of microscopic organisms
the answer to this problem is c
