What biome has warm temperatures, high precipitation, and little seasonal variation due to its location near the equator?

GENV 205 WEEK 2 QUIZ (ALL CORRECT)

Quiz

1) Which of the following are biotic?

I. Decomposers

II. Energy flow

III. Producers

(1pts)

I only

II only

III only

I and III

I, II, and III

2) Which of the following best describes an ecosystem?

(1pts)

Populations interacting

All biotic factors interacting

Inter-species relationships

Intra-species relationships

All biotic and abiotic factors

3) Of the following, which are products of photosynthesis?

I. Glucose

II. Carbon dioxide

III. Water

(1pts)

I only

II only

III only

I and II

I and III

4) Which group of organisms performs photosynthesis?

(1pts)

Autotrophs

Scavengers

Heterotrophs

Consumers

Decomposers

5) Which of the following shows the complex interactions between species within an ecosystem?

(1pts)

Food chain

Food web

Food pyramid

Energy pyramid

Trophic level diagram

6) What are the physical products of cellular respiration?

(1pts)

Oxygen and carbon dioxide

Nitrogen and carbon

Glucose and oxygen

Water and carbon dioxide

Glucose and water

7) Which of the following is the approximate efficiency of the energy transfer as energy flows through the food chain?

(1pts)

1%

10%

25%

50%

90%

8) How is the majority of energy within an ecosystem lost?

(1pts)

Heat loss

Energy used to grow biomass

Cellular respiration

Cellular metabolism

Energy used to capture prey

9) What law best relates to energy loss within an ecosystem?

(1pts)

First law of thermodynamics

Second law of thermodynamics

Third law of thermodynamics

Law of conservation of matter

Law of relativity

10) Humans have a considerable effect on the hydrologic cycle. Which of the following has a direct effect on this cycle?

I. Deforestation

II. Urbanization

III. Mining of fossil fuels

(1pts)

I only

II only

III only

I and II

I, II, and III

11) Which of the following is considered to be the most important element in living organisms?

(1pts)

Carbon

Hydrogen

Oxygen

Phosphorus

Nitrogen

12) Which element is the primary component of fossil fuels?

(1pts)

Carbon

Hydrogen

Oxygen

Phosphorus

Nitrogen

13) What relatively recent development is greatly impacting the carbon cycle?

(1pts)

Photosynthesis

Cellular Respiration

Formation of fossil fuels

Combustion of fossil fuels

Formation of carbonate rocks

14) What is a possible result of an increased amount of CO2 in the atmosphere?

(1pts)

Increased precipitation

Decreased photosynthesis

Increase in global temperature

Decrease in cellular respiration

Increase in formation of fossil fuels

15) What group of organisms is primarily responsible for the processes that occur in the nitrogen cycle?

(1pts)

Autotrophs

Heterotrophs

Bacteria

Detritovores

Scavengers

16) When nutrients are transported through soil with water, this process is known as

(1pts)

infiltration.

percolation.

decomposition.

leaching.

nitrification.

17) A scientist is observing a series of plants and measuring their growth with the addition of nutrients. She notices that the addition of nitrate has no effect on the growth while the addition of phosphorus shows significant growth. What conclusion can she draw about the nutrients in relation to this plant?

(1pts)

hosphorus is a limiting nutrient.

Nitrogen is a limiting nutrient.

The plant does not require nitrogen.

The plant does not require phosphorus.

The plant had an excess of nutrients, limiting its growth.

18) What is the major source of phosphorus on land?

(1pts)

Deposition from atmospheric phosphorus

Compounds that are formed by autotrophs during photosynthesis

Compounds released from the weathering of rocks

Compounds formed from bacterial conversion

Compounds dissolved in precipitation

19) What effect would clear cutting within a watershed have on the water quality of a river running through the watershed?

(1pts)

Decrease in nutrient concentration in the waters of the clear-cut watershed

Increase in nutrient concentration in the waters of the clear-cut watershed

Decrease in the amount of runoff entering the waters of the clear-cut watershed

Increase in the biodiversity of the river

Clear-cutting should not have an effect on the water quality of a river.

20) A new field has developed that focuses on restoring damaged ecosystems. This field is known as

(1pts)

mitigation ecology.

reconciliation ecology.

disturbance reconciliation.

habitat balancing ecology.

restoration ecology.

21) Which ecosystems are considered to be the most diverse?

(1pts)

Ecosystems experiencing high levels of disturbance

Ecosystems experiencing intermediate levels of disturbance

Ecosystems experiencing low levels of disturbance

Ecosystems experiencing no disturbance

Ecosystems that once had high levels of disturbance but have been stable for hundreds of years

22) Which of the following is the best description of a region’s climate?

(1pts)

The average temperature and precipitation over several decades

The average precipitation over a 1–2 year time period

The average high temperature of a region

The amount of rainfall that an area receives over a period of 1 year

The average temperature and rainfall over a period of 1–2 years

23) Which of the following would not have a significant effect on the climate of a region?

(1pts)

The unequal heating of Earth by the Sun

Atmospheric convection currents

A single abnormally wet year due to El Niño

The rotation of Earth

Earth’s orbit around the Sun on a tilted axis

24) In which level of the atmosphere does weather occur?

(1pts)

Troposphere

Stratosphere

Mesosphere

Thermosphere

Exosphere

25) Which level of the atmosphere contains the ozone layer?

(1pts)

Troposphere

Stratosphere

Mesosphere

Thermosphere

Exosphere

26) What is the importance of the ozone layer?

(1pts)

It plays an important role in the greenhouse effect.

It reflects solar gamma radiation that would otherwise reach the Earth’s surface.

It acts as an insulator for the Earth and helps to maintain a livable temperature.

It absorbs incoming UV rays.

It reflects incoming heat back into space.

27) What best describes the temperature of the atmosphere?

(1pts)

It decreases as you increase in altitude in the troposphere.

It increases as you increase in altitude.

It maintains a constant level throughout the atmosphere.

It shows fluctuations up and down as you move through the layers of the atmosphere.

It does not change.

28) What is the cause of the differing seasons of the Earth?

(1pts)

The different distances of the Earth to the Sun based on the elliptical orbit

The different lengths of the day during summer and winter

The Coriolis effect

The tilt of the Earth on its axis

The speed of the orbit of the Earth around the Sun

29) What is one major role that these gyres play in global climate?

(1pts)

Currents redistribute heat from the north to the south.

Currents redistribute heat from the equator to northern latitudes.

They drive global wind patterns in the northern hemisphere.

They contribute to the Coriolis effect.

Currents redistribute tropical moisture.

30) What factors are used to classify a biome?

I. Average temperature

II. Average precipitation

III. Distinctive plants adapted to area

(1pts)

I only

II only

III only

I and II

I, II, and III

31) Which of the following is the Earth’s most diverse biome?

(1pts)

Wetlands

Tropical Rainforest

Temperate seasonal forest

Coral reefs

Grasslands

32) What biome has warm temperatures, high precipitation, and little seasonal variation due to its location near the equator?

(1pts)

Boreal forest

Subtropical desert

Temperate grassland/cold desert

Woodland/shrubland

Tropical rainforest

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