Question

1. select the areas where wetlands typically occur. (select all that apply)

flood plains
a. in areas with a high density of woody vegetation
low areas
water table is near the surface

1. which of the following is not considered a substrate?

a. dirt
b. rocks
c. plants
d. sand

1. hydroperiod determines which of the following?

a. depth, duration and frequency of flooding
b. speed and direction of water flow
c. salinity and nutrients
d. health of wetland area

1. aerenchyma is found in which of the following plants?

a. cypress
b. mangroves
c. rush
d. tupelo

1. anaerobic is best described as which of the following?

a. saturated
b. high in oxygen
c. low in oxygen
d. dry

1. wetlands are categorized based on which of the following criteria?

a. surface storage and productivity
b. salinity and nutrient levels
c. temperature and elevation
d. flooding depth, plant type, and soil type

1. wetland plants are water - loving species that are adapted to survive in flooded conditions. by what name are these plants known?

a. xerophytes
b. mesophytes
c. halophytes
d. hydrophytes

Explanation:

Question 1

Wetlands occur in flood - plains (a), low areas (b) where water can accumulate, and where the water table is near the surface (c). High density of woody vegetation is not a defining characteristic for the occurrence of wetlands.

Question 2

Substrate refers to the surface or material on which an organism lives. Dirt, rocks, and sand are all substrates. Plants are living organisms and not a substrate.

Question 3

Hydroperiod is defined as the depth, duration, and frequency of flooding in a wetland. It does not determine the speed and direction of water flow (b), salinity and nutrients (c), or the health of the wetland area (d) directly.

Question 4

Aerenchyma is a tissue in plants that provides a pathway for gas exchange. Mangroves have aerenchyma to deal with oxygen - poor soil conditions. Cypress, rush, and tupelo do not have aerenchyma as a key defining feature in the context of wetland plant adaptations.

Question 5

Anaerobic conditions are those that are low in oxygen. Saturated (a) refers to water content, high in oxygen (b) is aerobic, and dry (d) is the opposite of wetland conditions.

Question 6

Wetlands are categorized based on flooding depth, plant type, and soil type (d). Surface storage and productivity (a), salinity and nutrient levels (b), and temperature and elevation (c) are not the primary criteria for wetland categorization.

Question 7

Hydrophytes are water - loving plants adapted to flooded conditions. Xerophytes are adapted to dry conditions (a), mesophytes to moderate moisture (b), and halophytes to saline conditions (c).

Answer:

1. a. Flood plains, b. Low areas, c. Water table is near the surface
2. c. Plants
3. a. Depth, duration and frequency of flooding
4. b. Mangroves
5. c. Low in oxygen
6. d. Flooding depth, plant type, and soil type
7. d. Hydrophytes