What is the measure of members of a single species in a habitat against all organisms within the same area?

a. community diversity
b. absolute species abundance
c. relative species abundance
d. community richness


c. relative species abundance

Biology & Microbiology

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Which of the following might complicate the interpretation of ChIP-Seq data?

A. Because histones can be moved around or ejected from the chromatin, some DNA might not be sequenced if it is not wrapped around a histone B. DNA wrapped around nucleosomes can never be sequenced C. The regions of DNA wrapped around a histone is too long to be sequenced with current technologies D. The DNA between nucleosomes are too compacted to be sequenced

Biology & Microbiology

Why is the hydrogen ion gradient of the electron transfer chain important for energy production?

What will be an ideal response?

Biology & Microbiology

The DNA sequence 5? ATGGGGGACACC 3? encodes the amino acids Met Gly Asp Thr. A mutation changes the sequence to 5? ATGGGTGACACC 3?, but the same amino acids are encoded. What type of mutation has occurred?

A) frameshift mutation B) missense mutation C) silent mutation D) nonsense mutation

Biology & Microbiology

You encounter an insect with small eyes, long sensory antennae, and a long mouthpart shaped like a sword. What can you conclude about the environment in which it lives?

A) The environment is dark and has many plants. B) The environment is wet and has many other insects. C) The environment is hot and has many primates. D) The environment is cool and has many reptiles.

Biology & Microbiology