Population attributes: growth, birth and death rate, age distribution
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See all →- Which one of the following equations represents the Verhulst-Pearl Logistic Growth of population? Answer: 2. dN/dt = rN((K - N)/K) Key idea: The Verhulst-Pearl logistic equation includes the carrying capacity K. dN/dt=rN(K-N/K) When N is... 1
- The equation of Verhulst-Pearl logistic growth isdN/dt = rN≤ft[K-N/K].From this equation, K indicates: Answer: 4. Carrying capacity Key idea: in the Verhulst-Pearl logistic equation, K is the carrying capacity. In dN/dt=rN[K-N/K] , N is popula... 1
- Match List I with List II.List I: A. Logistic growth; B. Exponential growth; C. Expanding age pyramid; D. Stable age pyramidList II: I. Unlimited resource availability condition; II. Limited resource availability condition; III. The percent individua… Answer: 2. A-II, B-I, C-III, D-IV Key idea: Link each growth form or pyramid to its condition. Logistic growth: limited resources (II). Expo... 1
- If '8' Drosophila in a laboratory population of '80' died during a week, the death rate in the population is ______ individuals per Drosophila per week. Answer: 2. 0.1 Key idea: Death rate per individual = deaths ÷ population size. death rate = 8/80 = 0.1 individuals per Drosophila per week. 1
- In the exponential growth equation N_t=N_0e^rt, e represents : Answer: 3. The base of natural logarithms In N_t=N₀e^rt , e is Euler's number (about 2.718), the base of natural logarithms. The other names... 1
- Which of the following is not an attribute of a population ? Answer: 4. Species interaction Key idea: Attributes of a population are properties of the group as a whole, not of individuals or of interac... 1