PLEAS HEALP ME DUE IN 15 MINUTES WILL GIVE BRAINIEST A scientist used a radioactive isotope of nitrogen to label the nitrogenous bases of the DNA in a bacterial cell. The labeled cells were then allowed to grow and divide for one generation in a medium of non-radioactive nitrogen.
Describe how the distribution of radioactive DNA to the daughter cells provides evidence for semiconservative replication of the DNA molecule.

The us council on environmental quality, the world wildlife fund of the united states, the ecological society of america, the smithsonian institution, and the international union for the conservation of nature have proposed four principles of wildlife conservation. which of the following does not apply to wildlife conservation? a) continuous monitoring, analysis, and assessment b) ecosystem maintenance that includes wildlife c) a plan encompassing entire communities of organisms and all renewable resources d) a continued interest in harvesting populations for sport

Why is carbon the backbone of liveing things

Scientists studied reproduction in the new zealand mud snail to answer the question, “are there benefits to reproducing sexually or asexually? ” which of these hypotheses would least likely aid the scientists as they worked to answer the question? sexual reproduction is advantageous over asexual reproduction because it reduces the rate of mutation accumulation. asexual reproduction is advantageous over sexual reproduction because it allows the snails to produce more offspring. sexual reproduction is advantageous over asexual reproduction because it allows for snails to have increased genetic variation. asexual reproduction is advantageous over sexual reproduction because it decreases the snails’ need for social