Download NAME ______ANSWER KEY CH. 15/16 STUDY GUIDE

NAME _________ANSWER KEY___________________
CH. 15/16 STUDY GUIDE
DEFINITIONS:
1. CLIMATE:
2. DEFORESTATION:
3. DEMOGRAPHY:
4. ECOLOGICAL FOOTPRINT:
5. GREENHOUSE EFFECT:
6. HABITAT FRAGMENTATION:
7. NONRENEWABLE RESOURCE:
8. RENEWABLE RESOURCE:
9. SUSTAINABLE USE OR SUSTAINABLE DEVELOPMENT:
10. WEATHER:
QUESTIONS:
1. What is genetic diversity? A: HAVING A VARIETY OF INHERITABLE CHARACTERISTICS OR GENES IN AN
INTERBREEDING POPULATION.
2. What will help a species survive better, high genetic diversity or low genetic diversity?
A: HIGH GENETIC DIVERSITY – ENSURES THAT SOME MEMBERS OF THE POPULATION WILL SURVIVE.
3. Explain how biodiversity affects earth’s ecosystems.
A: HAVING HIGH BIODIVERSITY WITHIN AN ECOSYSTEMS TENDS TO MAKE THE ECOSYSTEM MORE STABLE,
BECAUSE IT ALLOWS THE SPECIES THAT ARE LIVING ALTERNATIVES FOR FOOD SOURCES IF SOMETHING SHOULD
HAPPEN TO ONE OF THEM.
4. What are the different spheres associated with Earth?
A: HYDROSPHERE, ATMOSPHERE; GEOSPHERE, BIOSPHERE
5. Looking at planet Earth to the right, label where you would find, polar, temperate &
tropical regions? A: POLAR AT THE POLES, TROPHICAL ALONG THE EQUATER & ON
BOTH SIDES OF IT; TEMPERATE IS THE AREA BETWEEN THE POLAR & THE TROPICAL
6. Explain why estuaries are important.
A: ESTUARIES ARE BREEDING GROUNDS FOR A LOT OF SPECIES AND ALSO AREAS
WHERE HUMANS AND LOCAL SPECIES & MIGRATING SPECIES WOULD BE ABLE TO
FIND AN EASY FOOD SOURCE.
7. Explain how smog is created. A: INTERACTION BETWEEN SUNLIGHT & POLLUTANTS FROM BURNED FOSSIL
FUELS.
8. Explain how acid rain changes the pH of water. Be sure to note where the pH normally is & what is the pH after
it is affected by the acid rain. A: IT CAUSES THE WATER TO BECOME MORE ACIDIC (A LOWER pH NUMBER)
THAN NORMAL RAIN. TYPICALLY WATER HAS A pH OF 5.6.
ARTICLES:
9. Explain how pollutants affected the frogs. A: POLLUTANTS IN THE WATER BECOME ABSORBED THROUGH THE
SKIN OF THE FROGS CAUSING DEFECTS IN THE FROGS.
10. Explain how biomagnification is affecting the different trophic levels in a food chain. A: THE LEVELS OF TOXIC
CHEMICALS INCREASES AS YOU GO UP THE TROPHIC LEVELS
11. Explain how invasive species like the pythons & kudzu are affecting the native species. A: KUDZU SPREADS &
COVERS THE NATIVE PLANTS BLOCKING OUT THE SUN. PYTHONS ARE VERY LARGE AND WILL PREY ON
ALLIGATORS & MANY NATIVE SPECIES & ENDANGERED BIRDS
12. Explain overexploitation. A: WHEN HUMANS OVER USE ANY WILDLIFE & PLANT SPECIES FOR FOOD, CLOTHING,
PETS, MEDICINE, SPORT & MANY OTHER PURPOSES.
13. Give examples of renewable resources. A: ANYTHING THAT CAN REPLACE ITSELF IN YOUR LIFETIME, LIKE
TREES, COWS, PLANTS
Nonrenewable resource. A: ANYTHING THAT TAKES A VERY LONG TO
REPLACE, LIKE FOSSIL FUELS, TREES THAT TAKE HUNDREDS OF YEARS TO GROW TO MATURITY
BIOMES:
1. Look over the different biomes in regard to their temperatures, precipitation, plant and animal species.
2. Which biome has the greatest biodiversity? A: TROPICAL RAIN FOREST