Which kind of worm is sometimes used to prevent blood clots? A. planarian B. leech C. fluke D. hookworm

Why does the efficiency of a complex machine decreases as more simple machines are used?

What are the deepest receptors in the skin for?

Electromagnetic waves used in ovens and cell phone are called

Explain the purpose of a quick body response like pulling a hand a way from a hot stove.

Do enzymes change delta-g?

A low area of land often forms between hills or mountains. This low area is called a valley. Which of the following might cause a valley to form? A. Waves from the ocean B. Basaltic lava flow from fissures C. Soil creep from freezing and thawing D.

The causes wind currents to move in circular patterns.

How can yeast cells be genetically modified to produce pyrethrin?

Which of the following classifications is based solely on strong evidence of evolutionary relationships among organisms? select one of the options below as your answer: a. linnaeus classification b. phylogenetic classification c.

Polar molecules have two regions with a slight positive charge (true or false)