Unit 6

Question 1

adaption

Answer 1

the ability of organisms to change and evolve

Question 2

age structure

Answer 2

the distribution of the population of species by age

Question 3

consumers

Answer 3

organisms that eat other organisms

Question 4

decomposers

Answer 4

the fungi and bacteria that break down dead bodies

Question 5

deep zones

Answer 5

the lowest three levels of the ocean encompassing depth greater than 3,300 feet and containing no light

Question 6

density

Answer 6

the number of a population in a given area

Question 7

distribution

Answer 7

the area in which a population lives, range

Question 8

evolution

Answer 8

the process of adaptation, or how organisms diversify and develop from earlier forms

Question 9

genes

Answer 9

the biological mechanism for passing the traits of the parent down to the offspring

Question 10

giantism

Answer 10

the tendency of an organism to be exceptionally large

Question 10

midnight zone

Answer 10

the highest level of the deep zone, which is between 3,300 to 13,000 feet deep

Question 11

mutation

Answer 11

an inheritable change in an organism’s genes

Question 12

natural selection

Answer 12

the theory that the offspring with the features most suited to the environment are more likely to survive and reproduce

Question 13

pod

Answer 13

a group of whales

Question 14

population ecology

Answer 14

the study of the population and the environment

Question 15

producers

Answer 15

organisms, such as plants, that add food to the environment

Question 16

rarefaction

Answer 16

taking several samples of the sea life in the area and noting the frequency and type of the species that are collected

Question 17

sunlight zone

Answer 17

the layer of the ocean that goes from the surface to 660 feet where sunlight is highly visible

Question 18

twilight zone

Answer 18

the level of the ocean between 660 and 3,300 feet that is partially infiltrated by sunlight