When meselson and stahl performed their experiments on dna replication, they grew cultures of e. coli in a heavy isotope of nitrogen (15n), then transferred cultures to a light isotope of nitrogen (14n) and allowed the cultures to grow in the latter for one or two generations. if replication occurred through a conservative mechanism, which of the following results would they have obtained?

What are the steps of how energy is transformed in plant cells?

The steps in the formation of extrusive igneous rocks are listed below in an incorrect order: 1. rock melts due to high temperature. 2. rock is buried deep under earth's surface. 3. magma is forced out of earth's surface during volcanic eruption. 4. lava cools and crystallizes to igneous rock. which of these best shows the correct order of steps in the formation of extrusive igneous rocks? 1, 3, 4, 2 2, 1, 3, 4 3, 4, 2, 1 4, 2, 1, 3

Which statement explains how gravity and intertia work together