Biology

Question 1

What is ecology

Answer 1

The study of interactions between organisms and the environment

Question 2

What is an organism

Answer 2

An individual living thing

Question 3

What would you call interactions of the same species living in the same environment at the same time

Answer 3

Population

Question 4

Define a community

Answer 4

Interactions of all living organisms that are living in the same area

Question 5

What is an ecosystem

Answer 5

It consists of all living organisms in a community and also the non living factors

Question 6

What would you call any of the worlds major ecosystem types

Answer 6

Biome

Question 7

What’s a fancy way of saying earth

Answer 7

Biosphere

Question 8

What are two main dynamics of an ecosystem

Answer 8

1:Energy flow
2:Chemical cycling

Question 9

What is the first law of thermodynamics

Answer 9

Energy cannot be created or destroyed but only transformed

Question 10

What is the second law of thermodynamics

Answer 10

Energy conversions are not completely efficient. Some energy is always lost as heat

Question 11

What is a trophic level

Answer 11

A position of organisms that occupies the food chain

Question 12

Name the four consumers in order

Answer 12

1:primary producers(autotrophs)
2:primary consumers(herbivores)
3:secondary consumers(carnivores)
4:territory consumers(carnivores that eat carnivores)

Question 13

What is something that gets energy at any level

Answer 13

Decomposers

Question 14

How do autotrophs get energy

Answer 14

Through the sun or chemical energy

Question 15

What are some examples of decomposers

Answer 15

Bacteria
Mushroom
Mold

Question 16

What are decomposers that get there energy from eating dead things

Answer 16

Detritivores

Question 17

Give 3 examples of detritivores

Answer 17

Snail, millipede, crab

Question 18

What is primary production

Answer 18

The amount of light energy converted to chemical energy by autotrophs

Question 19

What percent of visual light is converted to chemical energy through photosynthesis

Answer 19

1%

Question 20

What is gross primary production

Answer 20

The amount of light energy that is converted to chemical energy my photosynthesis

Question 21

What is secondary production

Answer 21

The amount of chemical energy in consumers food that is converted into their own biomass during a given time interval

Question 22

True or false most of the primary production is used by the consumers

Answer 22

False

Question 23

Where is energy lost

Answer 23

The const of living

Question 24

True or false each level only gets 10% of the energy

Answer 24

True

Question 25

What three cycles are the most studied and most important for living organisms

Answer 25

1:carbon cycle 2Nitrogen cycle 3:Phosphorus cycle

Question 26

Who is Rachel Carson

Answer 26

She spread awareness on the chemical DTD and showed how toxic it was to birds

Question 27

What does DTD stand for

Answer 27

dichloro-diphenyl-trichloroethane

Question 28

What is a niche

Answer 28

An organisms ecological role (like a job)

Question 29

What is the competitive exclusion principle

Answer 29

No two similar species can occupy the same niche at the same time

Question 30

What is the competition between individuals of the different species

Answer 30

Interspecific competition

Question 31

What is the competitive exclusion principle

Answer 31

Two species can’t occupy the same nice at the same time so it may cause one to go extinct

Question 32

What are the affects of two similar species together

Answer 32

One will increase while the other one will decrease

Question 33

What is a measure of how many different species occur in a different area

Answer 33

Species richness

Question 34

What is the Simpsons diversity index

Answer 34

A measure of diversity that takes into account richness and eveness

Question 35

Greater diversity equals what

Answer 35

Greater stability

Question 36

Name three things that greater diversity offers

Answer 36

1:More food resources 2:More habitats 3:More resilience in the face of an environmental change

Question 37

What are invasive species

Answer 37

Organisms that out compete native species

Question 38

What is primary succession

Answer 38

Begins with no soul and a pioneer species comes along and establish themselves as they die they produce the first layer of soil once there is soil the plants that can tolerate direct sunlight start to grow then abiotic factors change and once a community is dominated by a number of spitfire it becomes stable

Question 39

How long does primary succession take

Answer 39

100s of years

Question 40

How long does secondary succession take

Answer 40

~150 years

Question 41

What is secondary succession

Answer 41

Existing community is cleared but there is still base soil. Secondary succession is usually caused by a disturbance

Question 42

What is population dispersion

Answer 42

Pattern of spacing among individuals

Question 43

What are three types of patters of dispersions

Answer 43

Clumped Uniform Random

Question 44

What is exponential growth

Answer 44

Characteristic of populations without limiting factors

Question 45

What is logistic growth

Answer 45

It occurs when the population size approaches the carrying capacity

Question 46

What is carrying capacity

Answer 46

The maximum number of species that can be supported by the environment

Question 47

What happens when a population approaches carrying capacity

Answer 47

Environmental resistance

Question 48

What can change population of certain organisms

Answer 48

Predator-prey

Question 49

What is type one of a survivorship curve

Answer 49

High death rate in post productive years (e.g humans)

Question 50

What is type 2 of survivorship curves

Answer 50

Consistent mortality rate throughout life span

Question 51

What is type three of survivorship curves

Answer 51

Very high mortality rate at the beginning but the few survivors live long (eg trees)

Question 52

What is K selected

Answer 52

Late reproduction fee offspring Invest lost of energy in raising offspring (Eg chimpanzee)

Question 53

What is r selected

Answer 53

Many offspring Little parental care