TLS Online TPP Program

#Question id: 4573


Which of the following pieces of evidence most strongly supports the common origin of all life on Earth?

#Section 2: Evolution
  1. All organisms require energy.

  2. All organisms use essentially the same genetic code.

  3. All organisms reproduce.

  4. All organisms show heritable variation.

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TLS Online TPP Program

#Question id: 12447

#Section 1: Ecology

During exponential growth,

TLS Online TPP Program

#Question id: 3430

#Section 4: Behavioural Ecology

The proximate causes of behavior are interactions with the environment, but behavior is ultimately shaped by

TLS Online TPP Program

#Question id: 4651

#Section 2: Evolution

Some members of a photosynthetic plant species are genetically resistant to an herbicide, while other members of the same species are not resistant to the herbicide. Which combination of events should cause the most effective replacement of the non-herbicide-resistant strain of plants by the resistant strain?

1. The presence of the herbicide in the environment

2. The absence of the herbicide from the environment

3. The maintenance of the proper conditions for one generation

4. The maintenance of the proper conditions for many generations

TLS Online TPP Program

#Question id: 11506

#Section 2: Evolution

A biologist discovers a new unicellullar organism that possesses more than two flagella and two small, but equal-sized, nuclei. The organism has reduced

mitochondria (mitosomes), no chloroplasts, and is anaerobic. To which clade does this organism probably belong?

TLS Online TPP Program

#Question id: 3487

#Section 2: Evolution

Which of the following is true of innate behaviors?

A) Genes have very little influence on the expression of innate behaviors.

B) Innate behaviors tend to vary considerably among members of a population.

C) Innate behaviors are limited to invertebrate animals.

D) Innate behaviors are expressed in most individuals in a population across a wide range of environmental conditions.

E) Innate behaviors occur in invertebrates and some vertebrates but not in mammals.