at what point in sperm production do you hypothesize that loss of the testis-blood barrier would have an immunological effect on sperm production?

What are two ways in which waves erode the land?

Which of the following best describes the relationship between glucose and complex molecules such as hormones?

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