topic 1-2

Question 1

variation

Answer 1

differences in characteristics if organisms caused by genetic and environmental factors

Question 2

biological diversity

Answer 2

the number and variety of organism in an area

Question 3

species

Answer 3

a group of organisms that share similar genetic and physical characteristics generally they can interbreed and produce fertile offspring.

Question 4

speciation

Answer 4

the evolution of different species from a single ancestor

Question 5

structural adaption

Answer 5

an inherited physical characteristic that helps an organism survive in its environment

Question 6

diversity index

Answer 6

a measure of the biological diversity in an area, calculated by dividing the number of runs through the area by the total number of specimens.

Question 7

population

Answer 7

a particular section group, or type of people or animals living in an area or country

Question 8

community

Answer 8

an association of different populations of organisms in a particular environment or geographic area.

Question 9

competition

Answer 9

the struggle among individual organisms for access to a limited resource such as food or territory

Question 10

niche

Answer 10

the role or characteristics that is undertaken by an organism in an ecosystem

Question 11

narrow niche

Answer 11

a highly specialized role or characteristic actively undertake by am organisms in an ecosystem.

Question 12

Herbivore

Answer 12

an animal that feeds on plants

Question 13

consumer

Answer 13

an organism that feeds on plants or other animals for energy

Question 14

carnivore

Answer 14

an animal that eats a diet only of meat

Question 15

decomposer

Answer 15

organisms that break down dead or decaying organisms

Question 16

broad niche

Answer 16

the roles of characteristics activities filled by generalist organisms

Question 17

generalists

Answer 17

an organism with generalizes requirement and adaptations that allow it to survive in many different conditions

Question 18

specialists

Answer 18

a type of organisms that are adapted to very specific environments and has a narrow niche

Question 19

specialization

Answer 19

adaptions for surviving in very specific environments.

Question 20

symbiosis

Answer 20

close or long term interactions between two different species

Question 21

mutualism

Answer 21

a symbiotic relationship between two different organisms, that is beneficial to both

Question 22

parasitism

Answer 22

where two organisms are in a symbiotic relationship and one benefits and one is harmed.

Question 23

commensalism

Answer 23

when two organisms are in a symbiotic relationship and one benefits and one stays mutual or not harmed.