<span> Cells.Use Resources for Energy. Grows and Develops. Responds to Stimulus or Environment.<span>Reproduce.</span></span>
Answer:
all but option b is incorrect as in your list
Answer:
Fossils are the remains of long-dead organisms, preserved in rock. Because rocks are laid down in layers, one on top of the other, the fossil record is generally set out in date order: the oldest fossils are at the bottom. Running through the fossil record makes it clear that life has changed over time.
Explanation:
I looked it up for you :D
<u>Answer:</u>
<em>Atomic clock doesn’t contain decaying isotopes.
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<u>Explanation:</u><u>
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It is the <em>decay of radioactive elements</em> that emit radiations and most of these are harmful to life. But atomic clock doesn’t work on the principle of atomic decay. There is no atomic decay occurring in an atomic clock and thus there is no <em>harmful radiation being emitted from the atomic clock</em>.
Caesium atomic clocks, rubidium atomic clocks etc are some of the atomic clocks. The working principle of atomic clocks is the transition of atoms between various energy levels.
The <em>frequency of Electromagnetic signal</em> emitted during transition of atoms to higher energy levels is the basic factor that determines the working and <em>efficiency of an atomic clock.
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Answer:
The outcome resulting from crossing over is increase in the variability of phenotypes.
Explanation:
The non-sister chromatids tend to exchange some of the segments of chromosomes during the process of meiosis. This phenomenon is termed as crossing over or recombination.
Due to crossing over, a variety of different combinations are achieved in the genes. Hence, crossing over results in increased number of variability of phenotypes. The wide variety of genetic diversity produced is due to this phenomenon i.e crossing over or recombination.
