A student wants to ensure cross-pollination occurs between two different plants. Which procedure should the student use to ensure that cross-pollination can occur? •Pluck all of the flower petals from one of the given plants.
•Cover the flowers of one of the plants with a small plastic bag.
•Remove the pistils from the flowers of one of the plants before it matures.
•Remove the anthers from the flowers of one of the plants before it matures,

10. in which phase will crossing-over occur? a. mitosis b. metaphase ii c. prophase i d. meiosis ii

Everything that surrounds a particular organism

Match each law or principle to its description. 1. law of original horizontality sediment continues to spread in a flat plane until it hits an edge or runs out of material. 2. law of superposition the youngest strata are at the top and the oldest are at the bottom. 3. law of original lateral continuity sediment gets pulled down by gravity in a horizontal and flat layer. 4. law of cross-cutting or intrusive relationships if there is a fracture or intrusive feature seen in rock strata, it is younger than the rock strata.