1) As a population approaches the carrying capacity for a certain environment, which of the following is predicted by the logistic equation?
The population will go extinct
The population growth rate will increase
The population size will not change
The carrying capacity of the environment will increase.
2) Which of the following is the major reason for the ascent (upward movement) of water in trees?
negative pressure in the xylem cells pulls water upwards
a metabolic pump in the roots pushes water upwards
the evaporation of water occurring underground, at the tree’s roots, moves water upward
the structure of phloem cells pulls water upwards
3) Which of these genetic processes was likely most responsible for the Cambrian explosion of diversity in organism morphology?
point mutations
gene duplication
crossing over during meiosis
sexual reproduction
1. The population size will not change
As a population approaches the carrying capacity for a certain environment, the growth rate will approach zero.
2. negative pressure in the xylem cells pulls water upwards
3. gene duplication
Gene duplication was responsible for Cambrian explosion
1) As a population approaches the carrying capacity for a certain environment, which of the following is predicted by the logistic equation? The population will go extinct The population growth rate w...