Why are polyandrous mating systems more rare than polygynous matings?
only males are capable of multiple rounds of reproduction within a single breeding season.
only females care for the young.
females usually experience more intrasexual selection pressure than males.
females usually devote more energy to offspring production and development.

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