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

TLS Online TPP Program

#Question id: 10586

#Section 1: Ecology

Which of the following factors may not change carrying capacity over time?

TLS Online TPP Program

#Question id: 12675

#Section 5: Applied Ecology & Evolution

Use the incomplete diagram below, illustrating some of the steps involved in eutrophication to answer the following questions

What would be a likely entry for box A?

TLS Online TPP Program

#Question id: 10744

#Section 1: Ecology

Something that triggers a fixed action potential (FAP) is considered to be a(n) _____________.

TLS Online TPP Program

#Question id: 7500

#General Aptitude

A man is standing on a railway bridge which is 180 m long. He finds that a train crosses the bridge in 20 seconds but himself in 8 seconds. Find the length of the train and its speed.

TLS Online TPP Program

#Question id: 12575

#Section 5: Applied Ecology & Evolution

All of the following are adaptations that permit the camel to be active by day in the desert EXCEPT