The species concept based on analysis of character states that indicate the smallest monophyletic group is ________
A) the morphospecies concept
B) the phylogenetic species concept
C) the biological species concept
D) the ecological species concept
B
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In the logistic model of population growth, what is expected to happen to r when N = K?
a. r will approach rmax b. r will approach 1 c. r becomes negative d. r = 0 e. r > 0
Which of the following choices is not a function of the lymph vascular system?
a. delivers fats from food to the blood b. transports oxygen to cells and removes carbon dioxide c. returns water and plasma proteins to circulatory system d. transports cellular debris and pathogens to lymph nodes
A cactus spine and a pea tendril illustrate homoplasy because both are modified leaves
__________________ Indicate whether the statement is true or false.
Populations of two coexisting species are both tertiary consumers in a community. What relationship may exist between these two organisms?
A) predation B) mutualism C) competition D) succession