ecology

Question 1

ecosystem

Answer 1

a biological community of interacting organisms and their physical environment

Question 2

biotic factor

Answer 2

a factor created by a living thing or any living component within an environment in which action of the organism

Question 3

abioctic factor

Answer 3

non living chemical and physical parts of the environment that affect living organisms and the functioning of ecosystems

Question 4

organism

Answer 4

an individual living thing that can react to stimuli reproduce grow and maintain homeostasis

Question 5

species

Answer 5

fundamental category of taxonomi classification ranking below a genus or sub genus

Question 6

population

Answer 6

a group of organisms of one species that interbreed and live in the same place at the same time

Question 7

community

Answer 7

an interacting group of various species in a common location

Question 8

habitat

Answer 8

place where an organism or biological population normally lives or occurs

Question 9

natural selection

Answer 9

the process in nature by which according to Darwin theory of evolution the organisms best adapted to their environment tend to survive

Question 10

evolution

Answer 10

the change in the heritable characteristics of biological populations over successive generations

Question 11

producers/autotrophs

Answer 11

an organism capable of synthesizing its own food from inorganic substances using light or chemical energy

Question 12

consumers/heterotrophs

Answer 12

an organism that cannot manufacturer its own food and instead obtains its food an d energy by taking in organic substances usually plant or animal matter

Question 13

primary consumer

Answer 13

living organism all organisms that are classified as herbivores also called plant eaters

Question 14

secondary consumer

Answer 14

any organism that consumes or feeds largely on primary consumers as well as autotrophs supplement

Question 15

tertiary consumer

Answer 15

a carnivore at the topmost level in a food chain that feeds on other carnivores

Question 16

herbivores

Answer 16

any organism that eats only plants

Question 17

carnivores

Answer 17

an animal or plant that requires a straple diet consisting of animal tissue

Question 18

omnivores

Answer 18

animal that eats both plants an animals for their main food

Question 19

decomposers

Answer 19

an organism especially a soil bacterium fungus or invertebrate the decomposes organic material

Question 20

food chain

Answer 20

a hierarchical series of organisms each dependent on the next as a source of food

Question 21

food web

Answer 21

a graphical model showing the interconnected chains in an ecological community

Question 22

energy pyramid

Answer 22

graphical model of energy flow in a community

Question 23

carbon cycle

Answer 23

the combined processes including photosynthesis decomposition and by which carbon as compent of various compounds cycles

Question 24

nitrogen cycle

Answer 24

a continuous series of natural processes by which nitrogen passes successfully from air to soil to organisms and back

Question 25

ecological succession

Answer 25

the process by which the structure of a biological community evolves over time

Question 26

primary succession

Answer 26

one of two types of biological and ecological succession of plant life

Question 27

secondary succession

Answer 27

process started by an event that reduces an already established ecosystem

Question 28

pioneer species

Answer 28

the first to colonize previously disrupted or damaged ecosystems

Question 29

climax community

Answer 29

populations of plants or animals remain stable and exist in balance with each other and their environment

Question 30

ecosystem

Answer 30

a system that includes all living organisms in an area as well as its physical environment