Practice Questions

TLS Online TPP Program

#Question id: 11368

Which of these statements about prokaryotes is correct?

#Unit 9. Diversity of Life Forms

Bacterial cells conjugate to mutually exchange genetic material.
Their genetic material is confined within a nuclear envelope.
They divide by binary fission, without mitosis or meiosis.
The persistence of bacteria throughout evolutionary time is due to their genetic homogeneity (i.e., sameness).

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TLS Online TPP Program

#Question id: 12348

#Unit 10. Ecological Principles

The following equation represents a hypothetical relationship between fitness (w) and shoot: root ratio (r) in individuals of a plant species: w = 10r-10r2. At what value of shoot: root ratio (r), do these plants achieve maximum fitness? (Use decimal notation, not fractions or percentage)

TLS Online TPP Program

#Question id: 12349

#Unit 10. Ecological Principles

Males in a population differ in the time they spend displaying to females. A researcher hypothesizes that predators are responsible for these differences. Males display for longer durations when there are no predators in the vicinity and for shorter durations when there is a predator nearby. Which of the following study designs is the most appropriate test of this hypothesis?

TLS Online TPP Program

#Question id: 12350

#Unit 10. Ecological Principles

What is the approximate current growth rate of the human population?

TLS Online TPP Program

#Question id: 12351

#Unit 10. Ecological Principles

All the resources a species could potentially use describe its ____________.

TLS Online TPP Program

#Question id: 12352

#Unit 10. Ecological Principles

Which of the following populations is most likely to go extinct?

TLS Online TPP Program

#Question id: 12353

#Unit 10. Ecological Principles

The number of individuals per unit area determines the population's