*Question*
Answer the following question given this paragraph: CHAPTER SUMMARY 45.1 Population Demography Populations are individuals of a species that live in a particular habitat. Ecologists measure characteristics of populations: size, density, dispersion pattern, age structure, and sex ratio. Life tables are useful to calculate life expectancies of individual population members. Survivorship curves show the number of individuals surviving at each age interval plotted versus time. Q: What is the term for individuals of a species that live in a particular habitat? Choices: - family - ecosystem - biosphere - population A:
**Answer**
population

*Question*
Answer the following question given this paragraph: On the superior aspect of each kidney is the adrenal gland. The adrenal cortex directly influences renal function through the production of the hormone aldosterone to stimulate sodium reabsorption. Q: The adrenal cortex directly influences the function of what organs through the production of the hormone aldosterone to stimulate sodium reabsorption? Choices: - lungs - heart - tumors - kidneys A:
**Answer**
kidneys

*Question*
Answer the following question given this paragraph: Q: Mesophyll consists mainly of parenchyma cells specialized for what? Choices: - circulation - respiration - digestion - photosynthesis A:
**Answer**
photosynthesis

*Question*
Answer the following question given this paragraph: Q: Endotherms are warmed mostly by heat generated by what? Choices: - movement - electricity - the sun - metabolism A:
**Answer**
metabolism