Chapter 3.3 Sampling techniques and measurement of abiotic and biotic factors Flashcards Preview

FULL COURSE National 5 Biology > Chapter 3.3 Sampling techniques and measurement of abiotic and biotic factors > Flashcards

Flashcards in Chapter 3.3 Sampling techniques and measurement of abiotic and biotic factors Deck (6):
1

Abiotic factors can be measured using

instruments designed to give numerical values

2

A sample can be taken to represent a

population of an organism in a habitat or an ecosystem

3

Quadrats can be used to sample organisms that are

fixed, or partly fixed, to a surface or those that spend a significant time motionless.

4

Pitfall traps can be used to sample

invertebrate animals that move around surfaces

5

Quadrats and pitfall traps can be used

quantitatively or qualitatively to estimate populations of organisms.

6

Sampling techniques such as those involving quadrats or pitfall traps are limited in what they can measure and can potentially create

sources of error.