People who are very underweight often complain of being cold. However, individuals who are overweight are less likely to complain of being cold. Explain why this might be the case
What will be an ideal response?
Individuals who are underweight have less fat tissue than those who are overweight. Fat tissue serves to insulate the body. Those who are lacking sufficient fat tissue have less insulation and are therefore more likely to be cold.
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What two gases were most abundant on early Earth?
A) O2 and CO2 B) N2 and H2 C) CO2 and H2 D) CO2 and N2
Tetherin is a protein encoded in the human genome. Based on what you know about the interaction between Vpu and tetherin, what do you predict the broad cellular function of tetherin is?
A. To keep HIV particles in place until they are ready to bud B. To stop the spread of HIV in the body by inhibiting HIV release C. To help in HIV assembly D. To help with the maturation of HIV particles
The promotion of the lactose operon in
bacteria is a. activated by a repressor protein. b. independent of glucose concentration. c. activated by t lactose binding. d. regulated by RNA polymerase. e. none of these
Background extinction is a measure of the ____
a. rate of species turnover at the end of geological eras b. number of species that suffer extinction at the beginning of geological eras c. steady rate of species turnover within a lineage throughout most of their evolutionary history d. lowest rate of species turnover within a lineage observed within a geological era e. animals that appear in the dense forest