1. Secondary succession is usually the response after a small disturbance. 2. is the only constant.

3. Ecosystems were believed to continue to change until they reached a .

4. never happens in an ecosystem.

5. An ecosystem is in later successional stages if it has biodiversity.

6. The type of disturbances that have the greatest effect on biodiversity are disturbances.

Zoe decided to measure the hand length of each of her classmates. first she marked a line across each student's wrist and lined up a ruler from this mark to the top of the middle finger to measure the length. then she recorded the measurements in the table below. marla did this the same way for each classmate, and then zoe used this ruler to measure each straight line and record the data below. this data is invalid. what is the most likely reason why it is invalid? the ruler is marked in centimeters, but zoe recorded data in inches. the range of lengths is too wide, so zoe must have misread the ruler. marla’s complicated measuring procedure was overly confusing. marla could have been inconsistent while drawing outlines of fingers.

What nursing actions are part of the acute respiratory distress syndrome clinical network (ardsnet) protocol?

Which of the following statements accurately defines epidermis? a. a thick protein fiber composed of the protein collagen b. hard, dense bone tissue found on the outer surface of a bone c. single layer of epithelial cells and the underlying basal lamina d. outer, protective layer of the skin composed of stratified squamous keratinized epithelial tissue