Biology - Ecology

Question 1

Abiotic Factors

Answer 1

Non-living factors that affect living organisms and so effect communities

Question 2

Types of Abiotic Factors

Answer 2

Light intensity, temperature, moisture levels, soil PH and mineral content, Wind intensity and direction, availability of oxygen

Question 3

Biotic Factors

Answer 3

Living factors that effect the survival of living organisms

Question 4

Types of Biotic factors

Answer 4

Availability of food, new predators arriving, new pathogens, one species out competing another so the numbers are no longer sufficient to breed

Question 5

Quantitative Sampling

Answer 5

Taking several readings and then finding the number of pathogens of organisms per meters squared

Question 6

Range

Answer 6

The range of Data between the minimum and maximum values (subtract lowest value from highest value)

Question 7

Mean

Answer 7

Add all the readings together and divide by 10

Question 8

Mode

Answer 8

The most frequently occurring value

Question 9

Median

Answer 9

The middle value when the numbers are put in order

Question 10

How can the size of a population of animals or plants be estimated?

Answer 10

By taking samples of the organism from the habitat.

Question 11

Predator

Answer 11

Consumers that kill and eat other animals

Question 12

Prey

Answer 12

Animals that are consumed

Question 13

Photosynthesis Equation

Answer 13

Water + Carbon dioxide — Glucose + Oxygen

Question 14

Aerobic Respiration Equation

Answer 14

Oxygen + Glucose — Water + Carbon Dioxide (+Energy)

Question 15

Anaerobic respiration (in animals)

Answer 15

Glucose —– Lactic acid (+some energy)

Question 16

Anaerobic Respiration (in plants and yeast)

Answer 16

Glucose —- Carbon Dioxide + Ethanol + Energy

Question 17

Combustion Equation

Answer 17

Fuel + Oxygen —- Carbon Dioxide + water (+energy)