Answer:
How does light intensity affect the rate of photosynthesis in plant leaves?
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A physical change means that none of the atoms or chemical bonds have been changed inside of something. Therefore, if you make a physical change, you should be able to revert it back. That means that the answer to this question is "The changed substance retains its unique properties." because it is the only answer choice where nothing major is being changed. The rest of the answer choices indicate that once changed, it isn't able to be changed back.
Answer:
Stabilize the DNA
Explanation:
DNA is defined as deoxyribonucleic acid comprises of phosphates group, deoxyribose sugar , amino acids base pairs namely adenine, cytosine , ,guanine and thymine.
Increase in temperature denatures the amino acids and proteins which means losing the basic structural unique properties .When it is denatured there is going to be a big difficulty in the use .
The results gotten from the DNA isolation if it isn't kept in an ice bath will be very inaccurate which is one of the main reasons why the DNA has to be put in it for the best result.
Semipermeable means the cell membrane can pick and choose what goes out of it and into it. At least, that's what I believe it is.
Enceladus, one of Saturn's moons of only
about 314 miles in diameter hides in its entrails an ocean of liquid water that
is rich in organic molecules, making it one of the places where it is most
likely to find some form of extraterrestrial life.
Europa is a strange
shaped moon of Jupiter with a large number of intersecting lines. Models
from the interior of Europe show that under a thin crust of 5 km (3 miles) of
water ice, Europa can have oceans with 50 km (30 miles) of depth or more. The
visible marks of Europa could be the result of a global expansion where the
crust could have been fractured, filled with water and frozen.
