Saguaro cactus - Study guides, Class notes & Summaries

Explain how tolerance limits to environmental factors determine distribution of a highly specialized species such as the saguaro cactus. - ANSWERSTolerance limits are the minimum and maximum levels of a specific environmental factor that an organism can tolerate. The saguaro cactus has very specific and limited tolerance limits, which means that it can't really survive in many environments that don't fit its limits. Productivity, diversity, complexity, resilience, and structure are exhi...

AQA A-LEVEL GEOGRAPHY PAPER 1 PHYSICAL GEOGRAPHY MARK SCHEME AQA A-LEVEL GEOGRAPHY PAPER 1 PHYSICAL GEOGRAPHY MARK SCHEME ADDITIONAL SPECIMEN ASSESSMENT MATERIAL: SET 2 A-level GEOGRAPHY PAPER 1 PHYSICAL GEOGRAPHY Mark scheme Additional specimen V1.1 Mark schemes are prepared by the Lead Assessment Writer and considered, together with the relevant questions, by a panel of subject teachers. This mark scheme includes any amendments made at the standardisation e...

AQA A-LEVEL GEOGRAPHY PAPER 1 PHYSICAL GEOGRAPHY MARK SCHEME AQA A-LEVEL GEOGRAPHY PAPER 1 PHYSICAL GEOGRAPHY MARK SCHEME ADDITIONAL SPECIMEN ASSESSMENT MATERIAL: SET 2 A-level GEOGRAPHY PAPER 1 PHYSICAL GEOGRAPHY Mark scheme Additional specimen V1.1 Mark schemes are prepared by the Lead Assessment Writer and considered, together with the relevant questions, by a panel of subject teachers. This mark scheme includes any amendments made at the standardisation e...

AQA A-LEVEL GEOGRAPHY PAPER 1 PHYSICAL GEOGRAPHY MARK SCHEME ADDITIONAL SPECIMEN ASSESSMENT MATERIAL: SET 2 A-level GEOGRAPHY PAPER 1 PHYSICAL GEOGRAPHY Mark scheme Additional specimen V1.1 Mark schemes are prepared by the Lead Assessment Writer and considered, together with the relevant questions, by a panel of subject teachers. This mark scheme includes any amendments made at the standardisation events which all associates participate in and is the scheme which ...

AQA A-LEVEL GEOGRAPHY PAPER 1 PHYSICAL GEOGRAPHY MARK SCHEME ADDITIONAL SPECIMEN ASSESSMENT MATERIAL: SET 2 A-level GEOGRAPHY PAPER 1 PHYSICAL GEOGRAPHY Mark scheme Additional specimen V1.1 Mark schemes are prepared by the Lead Assessment Writer and considered, together with the relevant questions, by a panel of subject teachers. This mark scheme includes any amendments made at the standardisation events which all associates participate in and is the scheme which ...