A section of a topographic map is shown below. What is the difference in elevation in meters between Point X and Point Y on the map?

Types of scientific inquiry that biologist engage in that cannot be completely controlled

What is a sex-linked genetic disorder that disrupts the blood's ability to clot? a.achondroplasia b.huntington's disease c.hemophilia d.albinism

Rarefaction is used for which of the following? a. creating a representative sample b. studying how disease impacts populations c. rediscovering species thought to be instinct d. determining which sea creatures live in an area