A small chromosomal DNA from a newly discovered virus replicates by a conservative mechanism. This viral DNA is initially enriched with 15N isotope and then move into a medium containing only 14N and allowed to replicate. Sketch the pattern you would see after 1 and 2 rounds of DNA replication

Dna is colied into chromosomes in a cell

What would happen if the krill were removed from the food web

State officials are considering constructing a road through a forested wilderness area. this action will likely affect the forest ecosystem in various ways. part a: predict how the construction of a road could negatively affect plants and animals in that ecosystem. (3 points) part b: describe one way that the construction of a road could have a positive impact of the forest ecosystem. (1 point)