Answer:
A
Explanation:
The top answer is correct, over time it has become weaker.
Answer
they are nonrenewable so that means once you use them they are gone forever or for a very, very, veryyy long time (like 100 of millions of years)
Explanation:
an example of this would be fossil fuels
Natural resources will not last forever because it takes longer to renew them than the speed at which we use them. Only renewable resources, like the sun, wind, etc, will last 'forever'
I think all of the above...
because I know they built aqueducts and sewers, so since 2 of they are correct, then all 3 must be.
Answer:
This question lacks options, options are: A) DNA replication is semiconservative. B) DNA replication is conservative. C) RNA synthesis is conservative. D) DNA replication is not conservative. The correct answer is A.
Explanation:
Watson and Crick proposed the semi-conservative hypothesis (later demonstrated by Meselson and Stahl in 1957), according to which new DNA molecules formed from an old one have an old and a new strand. This replication model assumed that the double helix DNA separates its two strands and each one serves as a template to synthesize a new strand following the complementary rules of nitrogenous bases. This model was called Semiconservative, since the two newly synthesized double helices have an old strand (an old half) and a new strand (a new half).
