Practice Questions

TLS Online TPP Program

#Question id: 9242

Eutrophication is often caused by excess limiting-nutrient runoff from agricultural fields into aquatic ecosystems. This process results in massive algal blooms that eventually die and decompose, ultimately depleting the dissolved oxygen, killing large numbers of fish and other aquatic organisms. Predict which of the following human actions would best address the problem of eutrophication near agricultural areas?

#SCPH28 | Zoology

After each eutrophication event, remove the dead fish and invertebrates to place on agricultural fields instead of fertilizer.
Determine which limiting nutrient is responsible for the algal bloom, and use other fertilizers to apply to crops.
Remove the algae before it dies and decomposes to prevent eutrophication from occurring.
Determine critical nutrient loads required for certain crops, and do not exceed this amount during fertilizer application.

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TLS Online TPP Program

#Question id: 1036

#SCPH28 | Zoology

A urine sample with more than 100,000 organisms is considered indicative of infection. A urine sample containing 5,000 bacteria, with a generation time of 30 minutes, sits for 3 hours before finally being assayed. How many bacteria will then be present within the sample?

TLS Online TPP Program

#Question id: 4573

#SCPH05 I Biotechnology

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

TLS Online TPP Program

#Question id: 18647

#SCPH06 I Botany

Which of the following technique used discontinuous type gel system

TLS Online TPP Program

#Question id: 15238

#SCPH28 | Zoology

Electrophoretic resolution can be mainly changed by adjusting the