Unit A | Topic 1-2 | Biodiversity, Characterizations of living things, Niches

Question 1

Definition of:
Biodiversity

Answer 1

The number and variety of organisms

Question 2

3 things biodiversity depends on:

Answer 2

1. Ecosystem
2. Species
3. Genetics

Question 3

What is the most biodiverse regions on earth?

Answer 3

Rain forests
(i.e: Amazon rain forest)

Question 4

Definition of:
Keystone species

Answer 4

A species that other organisms depend on for survival
(i.e: coral is a keystone species because fish depend on it for protection)

Question 5

What are the characterizations (NOT classifications) of living things?

Answer 5

1. Everything needs energy
2. Everything grows
3. Everything reproduces
4. Everything has DNA
5. Everything has cells
6. Everything has organization
7. Everything responds to stimuli

Question 6

Everything, living or non-living, is divided into two groups, what are these groups?

Answer 6

1. Abiotic
   non-living
2. Biotic
   living

Question 7

What are the ecological levels of organization?

Answer 7

1. Individual (individual)
2. Population (species)
3. Community (different species)
4. Ecosystem (antibiotic)

Question 8

What are the classifications of living things that is used to determine what the specific organism is?

Answer 8

1. Kingdom
2. Phylum
3. Class
4. Order
5. Family
6. Genus
7. Species

Question 9

What two classifications are used to determine an organisms scientific name?

Answer 9

Genus - Species

Question 10

Definition of:
Structural adaptation

Answer 10

A physical characteristic that allows the organism to survive

Question 11

Definition of:
Behavioral adaptation

Answer 11

A behavioral characteristic that allows the organism to survive

Question 12

Definition of:
Species

Answer 12

Living things that have the same structures and can reproduce with one another

Question 13

What is the value of variation?

Answer 13

1. Resistance to diseases
2. Biodiversity
3. Ability to survive, adapt, and overcome challenges

Question 14

Definition of:
Interdependence

Answer 14

Each species relies on other species in its environment.

Question 15

Types of symbiosis:

Answer 15

1. Parasitism
2. Commensalism
3. Mutualism

Question 16

Definition of:
Parasitism

Answer 16

One organism benefits,
One organism suffers.
(+/-)

Question 17

Definition of:
Commensalism

Answer 17

One organism benefits,
One organism isn’t affected.
(+/=)

Question 18

Definition of:
Mutualism

Answer 18

Both organisms benefit.
(+/+)

Question 19

Definition of:
Niche

Answer 19

The role that an organism plays in its environment

Question 20

What does a niche of an organism include?

Answer 20

1. Its habitat
2. What it eats
3. What eats it
4. How it interacts with the environment
5. How it interacts with other species
6. How it reproduces

Question 21

Definition of:
Broad Niche

Answer 21

Organisms that can live in many environments
(i.e: Generalists)

Question 22

Definition of:
Narrow Niche

Answer 22

Organisms that can’t live in many environments
(i.e: Specialists)

Question 23

Definition of:
Resource partitioning

Answer 23

Dividing resources between species