Flashcards in Lecture 4-Organisms and resources Deck (8)
What is an important factor for sessile organisms in the environment?
What resources do plants use? Are all the same?
-light , CO2, H2O,O2, mineral micronutrients (N, P,K,S,Ca,Mg.Fe) and trace elements
What does C3, C4, CAM refer to in plants?
-type of photosynthesis
C4-water efficient as CO2 used more efficiently -so good for warm climate
-CAM highly water efficient as fix CO2 at night and keep stomata close during the day
What limits photosynthesis?
-availability of other resources like H20
Why do some plants resort to being carnivorous?
-low nutrient availability
What are the 3 main types of consumption of food resources?
-decomposition(bacteria, fungi, detrivorous animals)
-prasitism(consumer that does not kill its food organism)
-predation (the food organism or part of it is eaten and killed
How do generalists and specialists differ ein terms of food?
generalists= wide variety of food
specialist= narrow variety (may limit where it can live)