#Question id: 11401
#Section 2: Evolution
In a hypothetical situation, a bacterium lives on the surface of a leaf, where it obtains nutrition from the leafʹs nonliving, waxy covering, while inhibiting the growth of
other microbes that are plant pathogens. If this bacterium gains access to the inside of a leaf, it causes a fatal disease in the plant. Once the plant dies, the bacterium
and its offspring decompose the plant. What is the correct sequence of ecological roles played by the bacterium in the situation described here? Use only those that
apply.
1. nutrient recycler 2. mutualist 3. commensal 4. parasite 5. primary producer
#Question id: 10871
#Section 2: Evolution
Which of the following best describes the relationship between humans and dogs?
#Question id: 4703
#Section 2: Evolution
Within a few weeks of treatment with the drug 3TC, a patientʹs HIV population consists entirely of 3TC-resistant viruses. How can this result best be explained?
#Question id: 11051
#Section 1: Ecology
Disadvantages of living in groups include
#Question id: 10612
#Section 1: Ecology
dN/dt = rN (K-N/K )
The logistic equation above is used to describe therate of change of a population, N, with time, t, Where r is the intrinsic rate of increase and K is the carrying capacity. Which of the following value of N showing maximum growth rate?
( K= 420, r =.05)