When water freezes, it.

Expands

Contracts

All connective tissue is formed from which embryonic germ layer?

Where does rna polymerase begin transcribing a gene into mrna? see concept 17.2 (page 342) ?

2. In the SN1 mechanism, the second step is attack of the nucleophile, so increasing the nucleophile concentration should speed up this step.

What method of mapping would provide the most accurate information above driving directions to a particular location?

A population of western skinks, a type of lizard, lives in a grassland habitat along the base of a mountain range. The construction of a multi-lane highway will divide the habitat into two separate regions.

What is an earth revolution, what shape is it's path, and how long it last

Mitosis and meiosis are methods of cell division. Which of the following is true of these two methods? A. Meiosis involves only one division, while mitosis involves two divisions. B.

What is empirical evidence and what is it not

What is a theory in biology

How might damaged alveoli affect the o2 level in the blood