⟩ The set O of odd positive integers less than 10 can be expressed by ___________ . a) {1, 2, 3} b) {1, 3, 5, 7, 9} c) {1, 2, 5, 9} d) {1, 5, 7, 9, 11}
b) {1, 3, 5, 7, 9}
b) {1, 3, 5, 7, 9}
What are primary consumers? Can food chain present quaternary consumers without having secondary or tertiary consumers? Can a tertiary consumer of one chain be a primary or secondary consumer of another chain?
What is dry mass?
In a numeric pyramid to which tropic level does the base always refer?
What do energy pyramids represent?
What do biomass pyramids represent?
In the short range what will happen to the levels above and below a population of secondary consumers of a numeric pyramid if a large number of individuals from this population dies?
In a numeric pyramid, is it possible the base to be smaller than the other levels?
What do numeric pyramids represent?
What is the difference between the concepts of food chain and food web?
What are the three main types of tropic pyramids studied in Ecology?