11. Instead of growing explosively, population growth tends to level off because the population reaches the _____ of a particular environment. (1 point)
doubling time
exponential growth
carrying capacity
linear growth
12. Which one of the following is NOT a cause of acid precipitation? (1 point)
sulfur dioxide from burning coal
nitrogen oxides from car exhaust
destruction of the ozone layer
all of the above
13. _____ is a branch of biology that focuses on the preservation of biodiversity. (1 point)
Ecology
Demography
Genetics
Conservation biology
14. A patch of wildife area may have different climate conditions around its perimeter. This is known as _____. (1 point)
edge effect
habitat fragmentation
habitat degradation
habitat loss
15. Carbon compounds that come from living organisms are called _____ compounds. (1 point)
water
organic
homogeneous
biological
16. Unlike carbohydrates and fats, proteins contain _____. (1 point)
nitrogen
carbon
hydrogen
oxygen
17. If a cell contains a nucleus, it must be a
_____. (1 point)
plant cell
eukaryotic cell
animal cell
prokaryotic cell
18. Because the phospholipid molecules and some proteins are free to move, the plasma membrane is said to be a ____. (1 point)
bilayer
solid
fluid mosaic
fatty acid
19. In a cell, the breakdown of molecules in order to release energy occurs in the _____. (1 point)
Golgi apparatus
ribosome
mitochondria
lysosome
20. Water moves out of a cell if the cell is placed in a _____ solution. (1 point)
hypertonic
isotonic
hypotonic
passive
doubling time
exponential growth
carrying capacity
linear growth
12. Which one of the following is NOT a cause of acid precipitation? (1 point)
sulfur dioxide from burning coal
nitrogen oxides from car exhaust
destruction of the ozone layer
all of the above
13. _____ is a branch of biology that focuses on the preservation of biodiversity. (1 point)
Ecology
Demography
Genetics
Conservation biology
14. A patch of wildife area may have different climate conditions around its perimeter. This is known as _____. (1 point)
edge effect
habitat fragmentation
habitat degradation
habitat loss
15. Carbon compounds that come from living organisms are called _____ compounds. (1 point)
water
organic
homogeneous
biological
16. Unlike carbohydrates and fats, proteins contain _____. (1 point)
nitrogen
carbon
hydrogen
oxygen
17. If a cell contains a nucleus, it must be a
_____. (1 point)plant cell
eukaryotic cell
animal cell
prokaryotic cell
18. Because the phospholipid molecules and some proteins are free to move, the plasma membrane is said to be a ____. (1 point)
bilayer
solid
fluid mosaic
fatty acid
19. In a cell, the breakdown of molecules in order to release energy occurs in the _____. (1 point)
Golgi apparatus
ribosome
mitochondria
lysosome
20. Water moves out of a cell if the cell is placed in a
_____ solution. (1 point)hypertonic
isotonic
hypotonic
passive