Blog

An ecologist records the following abiotic factors in a stretch of stream:      Steep gradient, frequent falls and rapids.      Most water is from groundwater.      Turbidity is low (water is very clear). Which of the following characteristics is the ecologist also likely to record?  Select all correct choices. 

The bird below is male American woodcock.  Males and females are very similar in appearance.  Males do not participate in nesting or care of offspring.  Females are known to engage in mate selection.    Based only on the physical appearance of the bird and the little information provided above the image, speculate on the possible criteria females use to select a mate.  Explain your speculation.

In the study of the decomposition of the compound X via the following reaction: X(g)

The following reaction at equilibrium is used to answer questions 25-28: X(s) + 2Y(g)

Which of the following is the correct equilibrium expression for the following reaction: CH4(g) + 2H2S(g)

Consider the following reaction:  CO(g) + 2H2(g)

The reactant concentration in a zero-order reaction was 0.900M after 130s and 0.350M after 335s.  What is the rate constant for this reaction? Zero-Order:                         First-Order:                         Second-Order: rate = k                                 rate = k[A]                            rate = k[A]2 [A] = -kt + [A]0                     ln[A] = -kt + ln[A]0                                                                 

Given:  CO(g) + 2H2(g)

After nervous stimulation stops, what prevents ACh in the synaptic cleft from continuing to stimulate contraction?  

Which of the following factors are NOT considered by judges in setting bail amounts?