Question

1. label each curve in relation to growth patterns. also label carrying capacity.
2. compare and contrast r and k selection.

r - selection
k - selection

1. what is the difference between density - dependent and density - independent factors as a general term?
2. describe six density - dependent factors in population regulation.

Explanation:

1. The J - shaped curve represents exponential growth, where the population grows rapidly without constraints initially. The S - shaped curve represents logistic growth, which starts slow, accelerates, and then levels off at the carrying capacity (the horizontal line representing the maximum population size the environment can sustain).
2. R - selection is characterized by high reproductive rates, many offspring with little parental care, and is common in unstable environments. K - selection involves fewer offspring, high parental investment, and occurs in stable environments where competition for resources is high.
3. Density - dependent factors affect a population based on its density, such as predation, competition for resources, and disease. Density - independent factors affect a population regardless of its density, like natural disasters (floods, fires) and climate changes.
4. Six density - dependent factors in population regulation are competition for food, competition for space, predation, parasitism, disease, and intraspecific aggression.

Answer:

1. J - shaped curve: exponential growth; S - shaped curve: logistic growth; Horizontal line: carrying capacity.
2. R - selection: High reproductive rate, many offspring, little parental care, in unstable environments. K - selection: Fewer offspring, high parental investment, in stable environments.
3. Density - dependent: Affect population based on density. Density - independent: Affect population regardless of density.
4. Competition for food, competition for space, predation, parasitism, disease, intraspecific aggression.