TLS Online TPP Program

#Question id: 2426


Actin assembly in vitro

a. consists of three phases.     

b. requires addition of actin oligomers termed nuclei.

c. requires ATP hydrolysis.

d. is reversible.

e. requires actin-binding proteins.

#Unit 2. Cellular Organization
  1. a and b 

  2. a and d   

  3. b and d  

  4. b and e

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TLS Online TPP Program

#Question id: 11055

#Unit 10. Ecological Principles

Poison arrow frogs have brightly coloured skin patterns of blue, orange, yellow and red. This skin adornment is an example of what kind of defense against predation?

TLS Online TPP Program

#Question id: 11056

#Unit 10. Ecological Principles

The "dead-leaf" butterfly is aptly named. This is an example of what kind of defense against predation?

TLS Online TPP Program

#Question id: 11057

#Unit 10. Ecological Principles

Bombardier beetles release an explosive mixture of quinones and hydrogen peroxide from glands at the end of their abdomen when disturbed by grasshopper mice and other predators. This is an example of what kind of defense against predation?

TLS Online TPP Program

#Question id: 11058

#Unit 10. Ecological Principles

The pufferfish, a common marine fish, has extensive spines that extend outward when it swallows water, becoming several times its normal size. This is an example of what kind of defense against predation?

TLS Online TPP Program

#Question id: 11169

#Unit 10. Ecological Principles

The viceroy butterfly (limenitis archippus) resembles the queen butterfly (danaus gilippus), a species toxic to birds because of alkaloids it stores during larval development from the milkweeds it feeds upon. The viceroy butterfly is an example of what kind of defense against predation?

TLS Online TPP Program

#Question id: 11170

#Unit 10. Ecological Principles

Which of the following examples is not a behavioural defense against predators?