A. Rate of growth of a seedling over two weeks.
Antibiotics in their name say they kill living things viruses are not living things. (Meme this as you may.)
I believe it is the cell membrane
Answer: They are all genetically tractable
Explanation:
Yeast, fruit flies, nematodes, mice or the small plant Arabidopsis have known genome i.e their entire genetic information is known to the scientific community, thus they are EASILY MODIFIED in genetic research.
Also, they are simple eukaryotes (having cells with defined nucleus) so they can explain the processes in the human eukaryotic cell during genetic research
Both reasons make them genetically tractable
<span>Days and nights would still occur since that is due to the earth's rotation. </span>If the earth were not tilted on its axis,<span> <span>temperatures would be constant year round.
> If the Earth </span></span><span>did not tilt on its axis, there will be no changing of seasons too. Temperatures at the north may stay cold and the south,warm..(no big change year round).</span>