When presented with the question "does plant food x have an effect on the production of tomatoes? " develop a hypothesis to answer this question and then design a small controlled experiment to test the hypothesis.

Explain how the number of similarities between the embryos from early stage to late stage is used as evidence of a common ancestry

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

How do the sperm cells get from the stigma to the ovules?