a) Which of the following is not a feature or output of a Model? a) Is based on

Question

a) Which of the following is not a feature or output of a Model?
a) Is based on our understanding of nature
b) Gives us precisely predictions on the outcome of an ecological phenomenon

c) Is a simplification of reality
d) Can be used to generate or test hypotheses

b) Populations that meet all of the assumptions of the Hardy-Weinberg Equilibrium are predicted to maintain a constant allelic frequency indefinitely. The problem is, there are few (if any) examples in nature where all of these assumptions are met. This doesn

Explanation / Answer

a) simplification of reality a model can be used to test no generate reality

b) environmental conditions are influencing which individuals survive Certain mutations are preadaptive and appear even without exposure to a specific environment. These express and become advantageous only when after exposure to new environment which only selects the preadaptive mutations that occurred earlier.

c) c)Adaptation occurs by natural selection. Evolution occurs by natural selection, sexual selection and genetic drift.

d) c)

In the morning, the stomata of CAM plants close, which conserves water and reduces the inward diffusion of oxygen into the cell. This lowers the oxygen concentration of the cell and cuts down on photorespiration. After the stomata close, the accumulated 4-carbon molecules leave the vacuole and break down to release CO2. This CO2 then reacts in the Calvin (C3) cycle.

CAM plants thrive in conditions of high daytime temperatures, intense sunlight, and low soil moisture (i.e. in desert conditions). Some examples of plants that make glucose using the CAM pathway are: cacti, sedums and ice plants (common landscaping plants), pineapples, Spanish moss, and epiphytic bromeliads (the spiky plants in seashells sold by tourist shops at the beach.)

e) a) competitive distinct type of strategy, i.e., low stress with low disturbance (com- petitive plants), high stress with low disturbance (stress-tolerant plants), and low stress

f) abundance and distribution of organisms and biodiversity in the context of ...... genetic constituency of populations responding to the antagonistic pressure.

g) Rising sea level

h) b) maximum number of individuals of a given species that an area's resources can sustain indefinitely without significantly depleting or degrading those resources.

i)d) Varying between time periods

j) Commensalism individuals of two species in which one species obtains food or other benefits from the other without either harming or benefiting the latter.

k) Removal of a keystone species from an ecosystem will likely cause

Collapse or severe reconfiguration of the ecosystem

l)

To compare pairs of samples and determine which are statistically different and which

are statistically similar

m) c) A value that is only used in intraspecific species interactions.
n) Bottom up control bottom-up control on the phytoplankton blooms in this region. ... to examine the bottom-up control factors of the different nutrient pools

o)c) It increases the level of competition for resources with individuals of different species

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