What does a food web represent?

All connections of energy flow throughout all organisms in a habitat.

The specific ways that mutualism is carried out.

A single pathway or energy flow between organisms.

A food chain is illustrated below: The arrows represented most likely indicate

A. Energy released from metabolism into the environment as heat.

B. Oxygen released from metabolism produced by cellular respiration.

C. The absorption of energy from the environment that has been created.

D. The transport of glucose away from the organism through photosynthesis.

A pond ecosystem is shown in the diagram below. Which statement describes an interaction that helps maintain the dynamic equilibrium of this ecosystem? Which statement describes an interaction that helps maintain the dynamic equilibrium of this ecosystem?

The catfish population helps control the populations of water boatman and waterfleas.

The frogs make energy available to this ecosystem through the process of photosynthesis.

The algae directly provide food for both the rotifers and the catfish.

The green-backed heron provides energy for the mosquito larvae.

1. What are renewable resources?

resources that can replenish themselves over time

resources that are used faster than they form

resources that formed over millions of years

resources that exist only in rural areas

1. Why has Earth's human carrying capacity increased greatly?

Humans have modified their environment due to technological advances.

Other organisms have been displaced by agriculture, so there is more space for humans.

Humans can live closer together than other animals

Humans are now eating fewer plants than they used to.

What is global warming

the trend of increasing temperatures on Earth

the normal temperature fluctuations of Earth's climate cycle

the melting of the polar ice caps

the changes in Earth's biosphere that affect the atmosphere

1. Why might an introduced animal species overrun native species in an ecosystem?

It often has no natural enemies

Its population size is smaller than those of native species.

It is more energy efficient, so it eats less food.

It is a predator of the native species.

having a lot of variety of different organisms.

having a lot of the same organism.

having a few of the same organism.

only having one of each organism.

Scientists attempted to determine the evolutionary relationships between three different finch species, A , B , and C . In order to do this, they examined the physical characteristics and DNA of these species. DNA was extracted from all three species and analyzed using gel electrophoresis. The results are shown in the diagram. Which statement best describes the method used above to determine the evolutionary relationships between three species of finches?

Obtain molecular evidence from all three species and identify similarities.

Examine the structure of the beaks and compare them.

Observe behavioral and physical characteristics of all the finches and group them by similarities.

Compare common ancestors of all three of the species to see if they are the same.

Ecology and Human Impact

Quiz

•

Biology

•

8th - 10th Grade

•

Practice Problem

•

Easy

•

NGSS

MS-LS2-3, MS-LS2-2, MS-LS2-4

+14

Standards-aligned

Denise Tretola

Used 35+ times

FREE Resource

38 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

energy path

food web

trophic level

food pyramid

Tags

NGSS.MS-LS2-3

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

which symbiosis is this

parasitism

mutualism

commensalism

nonalism

Tags

NGSS.MS-LS2-2

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Ecology and Human Impact

38 questions

The diagram below shows the cycling of nutrients in an ecosystem.
The removal of which of the following groups would cause an immediate decrease in the amount of energy flowing through the system?

Green plants are

What is the original source of almost all energy in most ecosystems?

An organism that produces its own food supply from inorganic compounds is called a(an)

What is an ecological model of the relationships that form a network of complex interactions among organisms in a community from producers to decomposers?

What is the term for each step in the transfer of energy and matter within a biological community?

which symbiosis is this

symbiotic relationship in which both organisms benefit

The energy at each trophic level in the pryamid of energy decreases by a factor of ____.

What does a food web represent?

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Ecology and Human Impact

38 questions

The diagram below shows the cycling of nutrients in an ecosystem.The removal of which of the following groups would cause an immediate decrease in the amount of energy flowing through the system?

Green plants are

What is the original source of almost all energy in most ecosystems?

An organism that produces its own food supply from inorganic compounds is called a(an)

What is an ecological model of the relationships that form a network of complex interactions among organisms in a community from producers to decomposers?

What is the term for each step in the transfer of energy and matter within a biological community?

which symbiosis is this

symbiotic relationship in which both organisms benefit

The energy at each trophic level in the pryamid of energy decreases by a factor of ____.

What does a food web represent?

Create a free account and access millions of resources

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Biology

The diagram below shows the cycling of nutrients in an ecosystem.
The removal of which of the following groups would cause an immediate decrease in the amount of energy flowing through the system?