Living things and the Environment

Question 1

what’s an organism

Answer 1

A living thing

Question 2

one organism in the savannah

Answer 2

giraffe

Question 3

What are some resources that organisms get from their environment?

Answer 3

Food, water, shelter, etc.

Question 4

What is a habitat?

Answer 4

An environment that provides the things a specific organism needs to live, grow, and reproduce

Question 5

biotic factor

Answer 5

The parts of a habitat that are or were once alive that interact with an organism

Question 6

abiotic factor

Answer 6

Nonliving parts of an organism’s habitat

Question 7

examples of biotic factors

Answer 7

Trees, prey animals, waste products made by organisms

Question 8

examples of abiotic factors

Answer 8

Water, oxygen, space, rocks, light, temperature, and soil

Question 9

Finish this statement: “Instead, organisms live together in populations and…

Answer 9

Communities that interact with abiotic factors in their ecosystems

Question 10

What are the four levels of organization of an ecosystem?

Answer 10

Organisms, populations, Communities, ecosystems

Question 11

How can we tell if organisms are of the same species?

Answer 11

if they can mate and reproduce with another of the same kind

Question 12

What is a population?

Answer 12

All the members of one species living in a particular area

Question 13

community

Answer 13

All the different populations that live together in an area

Question 14

ecosystem

Answer 14

The community of organisms that lives in a particular area, along with the nonliving environment

Question 15

one population in the savannah

Answer 15

giraffe population

Question 16

Savannah Community

Answer 16

Pop of zebras, pop of grass, pop of giraffes, etc.

Question 17

ecosystem (savannah)

Answer 17

desert, savannah ig

Question 18

What are four events that can change population size?

Answer 18

Births, deaths, immigration, emigration

Question 19

immigration

Answer 19

Moving into a population

Question 20

emigration

Answer 20

Moving out of a population

Question 21

Which two events decrease population size?

Answer 21

death, emigration

Question 22

Which two events increase population size?

Answer 22

birth rate, immigration

Question 23

population density

Answer 23

The number of individuals in an area of specific size

Question 24

limiting factor

Answer 24

An environmental factor that causes a population to stop growing, or decrease

Question 25

What are six limiting factors?

Answer 25

Food, water, climate, weather, space and shelter

Question 26

Last year, 7 wolf pups were born into the wolf pack. This year, 20 new pups were born in the same pack. What happened to the size of the population?

Answer 26

increase, bc of increased birth rate

Question 27

Last year, 3 giraffes in the same tower (population) were killed or died of natural causes. This year 20 giraffes were killed or died of natural causes in the same tower. What happened to the size of the population?

Answer 27

decrease, bc of increased death rate

Question 28

Last year there were 12 dolphins traveling in a pod. Since the last time they were counted, 3 dolphins in the pod died and 10 dolphins were born. What happened to the size of the population?

Answer 28

increase, more births than deaths

Question 29

One elephant herd of 6 joined a second elephant herd of 28. What happened to the size of the population?

Answer 29

increase, immigration

Question 30

One colony (population) of rabbits consisted of 62 rabbits. 12 of the rabbits left the colony and began a new colony in an area south where a different type of grass was found to feed on. What happened to the size of the original colony?

Answer 30

decrease, emigration

Question 31

In the forest, both hawks and foxes eat mice. Both species must feed on the mice to survive, so neither population can grow exponentially.

Answer 31

Competition, density dependent

Question 32

A new logging company was created in New Jersey and harvested all of the large trees in the forest. Birds, small mammals, insects, plants were all affected by this disturbance.

Answer 32

Habitat loss,density independent

Question 33

Elk eat the grass and shrubs in Yellowstone National Park, which keeps the grass and shrubs from covering the entire landscape.

Answer 33

food, density dependent

Question 34

Hurricane Sandy flooded northern NJ with ocean waters. Entire populations of fish were washed up on shore and stranded, which significantly reduced their numbers in the ocean.

Answer 34

Natural Disaster, di

Question 35

Wolves hunt and prey on the elk in Yellowstone National Park, which limits the size of the elk population.

Answer 35

dd, predators

Question 36

The Southern Pine Beetle feeds on and kills almost all of the pine trees in the forest.

Answer 36

dd, parasitism

Question 37

A deadly fungus infects and kills many oak trees in the forest, significantly reducing the oak tree population.

Answer 37

dd, consumers

Question 38

An unusually heavy snowfall happens very early in the winter, before the deciduous trees were able to drop their leaves. Many of their branches break so severely that they are not able to recover in the spring. The population of deciduous trees dropped significantly as a result of the snowstorm.

Answer 38

di, weather

Question 39

A population of rabbits reproduced all spring to nearly 50 times the original amount. Habitat space is limited, food is now scarce, and females are no longer reproducing.

Answer 39

dd, food, water, space

Question 40

DI factors list

Answer 40

Temperature Climate Weather Natural disasters Pollution Habitat destruction

Question 41

DD factors list

Answer 41

Food Water Space Competition Parasitism Disease

Question 42

Carrying Capacity

Answer 42

The largest population that an environment can support is called the carrying capacity. Limiting Factors determine the size of the population.

Question 43

Each individual hummingbird is called an ______________________.

Answer 43

organism

Question 44

The hummingbirds are able to reproduce and create young who can also produce more young, which means that the birds are of the same ______________________.

Answer 44

species

Question 45

The hummingbirds are all living in the garden, which is where they find their food, water, perches on trees, and nests for young. The garden is their ______________________.

Answer 45

habitat

Question 46

The group of hummingbirds living in the garden is called a _______________________________.

Answer 46

population

Question 47

The temperature and climate of the garden are _________________ factors.

Answer 47

abiotic

Question 48

The flowers with nectar, trees, grass, and insects are ____________________ factors.

Answer 48

biotic

Question 49

The hummingbirds, trees, grass, insects, and flowers together are called a _____________________________________.

Answer 49

community

Question 50

The hummingbirds, trees, grass, insects, and flowers along with the rocks, soil, climate, and air make up the ____________________________.

Answer 50

ecosystem

Question 51

The study of these living things and how they interact with each other and their environment is called ____________________.

Answer 51

ecology

Question 52

Food is always a ___________________________ in a habitat and this is no different for the hummingbirds.

Answer 52

limiting factor

Question 53

Adding more nectar stations (hummingbird feeders) has caused an increase in the __________________________, which has caused the hummingbird population to increase.

Answer 53

birth rate

Question 54

There are more hummingbirds per square meter in the garden, which means there is a higher _____________________________ than before the nectar stations were introduced.

Answer 54

population density

Question 55

More nectar stations have “artificially” changed the _____________________________ of the garden for hummingbirds.

Answer 55

carrying capacity

Question 56

Why is this change in the environment “artificial”?

Answer 56

the change was made by a human, and wasn't created by natural means

Question 57

How did removing all but one nectar station affect the behavior of the hummingbirds?

Answer 57

made them take more risks, made them be brave and face something they are afraid of

Question 58

What other behavior changes might you expect from the hummingbirds?

Answer 58

competition, low energy-leads to death, more territorial/aggressive behavior

Question 59

How will the carrying capacity of the environment be affected if there is only one nectar station for many weeks?

Answer 59

will decrease

Question 60

Will hummingbirds immigrate or emigrate if there is only one nectar station?

Answer 60

emigrate

Question 61

How could the birth rate and death rates be affected?

Answer 61

death rates up, birth rates down

Question 62

Can you “figure out” (hint, hint) the hummingbird wing mechanics in the slow motion footage?

Answer 62

figure 8, flips wings around, increase lift, reduces drag