Unit 2 Study Guide

Question 1

Rain carries soil into a nearby pond. This is an interaction between two “spheres” of the earth?

Answer 1

Hydrosphere and Geosphere

Question 2

The unique role a species plays in its environment is its

Answer 2

niche

Question 3

Some animals pretend that the are dead when they are threatened, which is also known as death-feigning. This is an example of

Answer 3

Thanatosis

Question 4

Which level of an energy pyramid is most likely to have the highest number of organisms?

Answer 4

Producers; on the lowest level of the pyramid

Question 5

Consumers that feed on dead animals

Answer 5

Scavengers

Question 6

Organisms that break down plants and animals into simpler molecules

Answer 6

Decomposers

Question 7

Energy from the sun is transferred into an organism because of the

Answer 7

First law of thermodynamics

Question 8

An owl’s feathers are colored in a way that allows it to blend in with the trees they use, allowing them to hunt effectively and evade predation. What is this an example of?

Answer 8

Camouflage

Question 9

A tiny filter-feeding barnacle sticks to a whale. The whale is unaffected by this new stowaway. What type of relationship is this?

Answer 9

Commensalism

Question 10

Which sphere of the earth is named using the Greek root meaning “ground”

Answer 10

Geosphere

Question 11

What are three examples of biotic factors?

Answer 11

1. Fish
2. Owl
3. Barnacle

Question 12

What are three examples of abiotic factors?

Answer 12

1. Rocks
2. Temperature
3. Water

Question 13

Organisms that only eat meat

Answer 13

Carnivores

Question 14

Which kind of niche involves competition between organisms?

Answer 14

Realized

Question 15

What percentage of chemical energy is transferred through each level of the trophic pyramid?

Answer 15

10%

Question 16

Organisms that eat both plants and meat are called

Answer 16

Omnivores

Question 17

In this picture, the mouse is a

Answer 17

grass > grasshopper > mouse > owl

B. Second-level or secondary consumer

Question 18

Organisms that eat only plants are called

Answer 18

Herbivores

Question 19

Which of the following combinations is most likely?

Answer 19

A. An autotroph that is a primary producer

Producers(=plants=)autotroph

Question 20

Provide a sequence of events that involves interactions between two of the earths spheres. Make sure to explain how each sphere is involved

Answer 20

Water evaporates
Hydrosphere > Hydrosphere

Coal burns
Geosphere > atmosphere

Question 21

In the fish tank below, draw and label examples of the following vocabulary terms

Answer 21

Organism: one fish
Population: more than one of the same species of dish
Community: multiple species of fish
Biotic: fish, plants
Abiotic: water

Question 22

Provide an example of mutualism

Answer 22

Mutualism: clownfish + anemone

Question 23

Provide an example of commensalism

Answer 23

Commensalism: bird + tree

Question 24

Provide an example of parasitism:

Answer 24

Tapeworms + humans

Question 25

An animal that adapts to multiple habits Example: raccoon

Answer 25

Generalist

Question 26

Specialists

Answer 26

Are animals that can only survive within a narrow range of parameters Example: panda only eats bamboo

Question 27

Using the food web below, label the trophic pyramid at the bottom of your page with the following terms:

Answer 27