2. State Standard SB4A. Investigate the relationships among organisms, populations, communities, ecosystems, and biomes. SB4D. Assess and explain human activities that influence and modify the environment such as global warming, population growth, pesticide use, and water and power consumption. Human Population – Growth & Age Structure (4.2)

3. Human Population Growth Rate  The human population experienced ____________ growth as humans benefitted from the Industrial ____________, improved ____________ production, improved ____________ care, & disease cure/prevention Population Ecology 4.2 Human Population Chapter 4

4. Human Population Growth Rate Cont’d  Although the human population is still growing, the rate of its growth has ___________.  Diseases like ______ & also ____________ population control have contributed to this slowing. Population Ecology 4.2 Human Population Chapter 4

5. Trends in Human Population Growth  Population trends can be altered by events such as __________ and ________. Population Ecology 4.2 Human Population Chapter 4  Human population growth is ________ the same in all countries.

6.  ____________ ___________ ____________ (ZPG) occurs when the birthrate equals the death rate. Population Ecology Trends in Human Population Growth Cont’d  The age structure eventually should be more balanced with numbers at ______- reproductive, ____________, and ______- reproductive ages being approximately equal. 4.2 Human Population Chapter 4

7. Age Structure Population Ecology  A population’s _____ __________ is the number of males and females in each of ______ age groups: pre-reproductive stage, reproductive stage, and post- reproductive stage. 4.2 Human Population Chapter 4 Trends in Human Population Growth Cont’d

8. Human Carrying Capacity Population Ecology  Scientists are concerned about the human population reaching or _________ the carrying capacity.  An important factor is the amount of ___________ from the biosphere that are used by each person. 4.2 Human Population Chapter 4 Trends in Human Population Growth Cont’d