Question

Match the terms with the most sutiable description.

Question 1 options:

12345	upwelling
12345	estuary
12345	pelagic province
12345	eutrophication
12345	benthic province

1.	deep, cool, often nutrient rich waters moves upward
2.	nutrient enrichment of a body of water
3.	partially enclosed mix of seawater and freshwater
4.	sediments, rocks of ocean bottom
5.	open ocean

Suppose you wanted to establish a self-sustaining ecosystem by sealing some sterilized soil, water, and air in a glass container with a few organisms. You would be most likely to succeed with which of the following?

Question 2 options:

	clover, bacteria, and grasshoppers
	bacteria and ants
	spiders, grasshoppers, and grass
	aphids, bacteria, and spiders
	beetles, fungi, and bacteria

Match the terms with the most suitable description.

Question 3 options:

12345	permafrost
12345	tropical rainforest
12345	chaparral
12345	grasslands
12345	boreal forest

1.	characterized by coniferous trees
2.	feature of arctic tundra
3.	a type of dry shrubland
4.	high productivity, rapid cycling of nutrients
5.	maintained by periodic fires

Answer 1

Q1)

Explanation:

1. upwelling- deep, cool, often nutrient rich waters moves upward.

2. estuary- partially enclosed mix of seawater and freshwater.

3. pelagic province- Open ocean.

(Pelagic zone, the open oceanincludes all marine waters throughout the globe beyond the continental shelf, as well as the benthic, or bottom, environment on the ocean floor.)

4. eutrophication- nutrient enrichment of a body of water.

5. benthic province- sediments, rocks of ocean bottom.

(Benthic province is the ecological region at the lowest level of a body of water such as an ocean, lake, or stream, including the sediment surface and some sub-surface layers).

Q2) spiders, grasshoppers, and grass.

Explanation:

In a self-sustaining ecosystem, any waste products produced by one species must be used by at least one other species for their survival. A closed ecological system must contain at least one autotrophic organism. Here, we have grasses as autotrophs. These grasses are consumed by grasshoppers and spiders eat grasshoppers as their food. The waste products from these two organisms eventually converted into oxygen, food, and water for the autotrophic grasses.

Q3)

Explanation:

1. permafrost- feature of arctic tundra.

(Land with underlying permafrost is called tundra. The arctic tundra is stark and treeless. Roots can't penetrate the frozen soil, so only moss, lichen, and low shrubs can grow there).

2. tropical rainforest- high productivity, rapid cycling of nutrients.

(The tropical rainforest is a hot, moist biome where it rains all year long. It is known for its dense canopies of vegetation with high productivity).

3. chaparral- a type of dry shrubland.

(Chaparral is defined as a plant community consisting of evergreen, sclerophyllous shrubs adapted to a Mediterranean-type climate).

4. grasslands- maintained by periodic fires.

(Grassland is one of the biomes which require mild grazing an periodic fire because this improves the productivity of the grass of the area).

5. boreal forest- characterized by coniferous trees.

(Coniferous trees are one of the characteristic features of harsh conditions forest like boreal forests)