Answer:
Frogs have smooth or slimy skin that is moist, whereas toads have thicker, bumpy skin that is usually dry. All toads are poisonous, while frogs are not.
Hey there!
Let's start with the first blank. The ozone layer starts in the stratosphere and is made of ozone gases made to protect the Earth from the Sun's harmful UV rays. If the ozone layer wasn't there (not to mention the rest of the atmosphere), we would be exposed to that kind of radiation. Thereofe, "Ultra violet rys would not be <u>blocked</u> by the ozone layer."
For the next one, a lot of levels of substances in the air would change, like UV and oxygen- as there would be more radiation from the lack of protection and all the oxygen would escape.
Hopefully this helps!
Adenine binds with the nitrogen base thymine in DNA while it
binds with uracil in RNA.
<h3>What is a DNA and RNA?</h3>
A DNA is referred to as deoxyribonucleic acid and has
deoxyribose sugar present in its structure while RNA is known
as ribonucleic acid and has ribose sugar present. They are
both nucleic acids which carry genetic information in an
organism.
Another difference is that Adenine binds with the nitrogen base
thymine in DNA while it binds with uracil in RNA.
Read more about Nucleic acids here brainly.com/question/2488520
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Third option:
Sexually will reproduce more
Different genetics will have more adaptability