Practice Questions

TLS Online TPP Program

#Question id: 12760

Which of the examples below provides appropriate abiotic and biotic factors that might determine the distribution of the species in question?

#XL - R Botany

The amount of nitrate and phosphate in the soil and wild flower abundance and diversity
The number of frost-free days and competition between species of introduced grasses and native alpine grasses
Increased predation and decreased food availability and a prairie dog population after a prairie fire
Available sunlight and increased salinity in the top few meters of the ocean and the abundance and diversity of phytoplankton communities

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TLS Online TPP Program

#Question id: 8923

#XL - R Botany

Which of these genetic processes may be most helpful in accounting for the Cambrian explosion?

TLS Online TPP Program

#Question id: 8924

#XL - R Botany

Fossil evidence indicates that the following events occurred in what sequence, from earliest to most recent?

1. Protostomes invade terrestrial environments.

2. Cambrian explosion occurs.

3. Deuterostomes invade terrestrial environments.

4. Vertebrates become top predators in the seas.

TLS Online TPP Program

#Question id: 8925

#XL - R Botany

What is the probable sequence in which the following clades of animals originated, from earliest to most recent?

3. deuterostomes

TLS Online TPP Program

#Question id: 8925

#XL - P Chemistry

What is the probable sequence in which the following clades of animals originated, from earliest to most recent?

3. deuterostomes

TLS Online TPP Program

#Question id: 8926

#XL - R Botany

Sponges and cnidarians are among the fossilized animals found in both the Ediacara Hills and the Burgess Shale from the Rocky Mountains of British Colombia. This observation requires that

TLS Online TPP Program

#Question id: 8927

#XL - R Botany

Arthropods invaded land about 100 million years before vertebrates did so. This most clearly implies that