Q. A researcher is studying a novel gene involved in eye development in Drosophila. They isolate a mutant strain where a single nucleotide insertion has occurred in the first exon of this gene. When a heterozygous fly (one mutant allele, one wild-type allele) is observed, its eyes develop completely normally. Based on the provided principles of genetic mutations, which of the following statements best characterizes this mutation?

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#Question id: 12964

#Unit 10. Ecological Principles

Where would an ecologist find the most phytoplankton in a lake?

TLS Online TPP Program

#Question id: 12965

#Unit 10. Ecological Principles

Phytoplankton is most frequently found in which of the following zones?

TLS Online TPP Program

#Question id: 12966

#Unit 10. Ecological Principles

You are planning a dive in a lake, and are eager to observe not many underwater organisms but be able to observe them both close up and far away. You would do well to choose

TLS Online TPP Program

#Question id: 12967

#Unit 10. Ecological Principles

Which of the following is the best explanation for why net primary productivity in terrestrial ecosystems tends to increase toward the tropics?

TLS Online TPP Program

#Question id: 12968

#Unit 10. Ecological Principles

Most terrestrial ecosystems have a pyramidal structure of where biomass of producers > primary consumers > secondary consumers > tertiary consumers. However, some aquatic ecosystems have an inverted pyramidal structure where the standing biomass of producers < primary consumers. An explanation for this is:

TLS Online TPP Program

#Question id: 12969

#Unit 10. Ecological Principles

In which of the following habitats would one expect to find the highest diversity of vascular plants?