Plants
Population Biology
Endangered Species
Animal Behavior
Communities
100

The vascular responsible for the transport of water and minerals is 

xylem

100

The number of individuals per unit of space is the 

density

100

The effect of reduced genetic diversity on the decline of the Florida panther was due to 

inbreeding

100

Successful experience that allows a forager to key in on specific of a prey item is

a search image

100

The efficiency of energy transfer at each trophic level is approximately 

10%

200

The loss of water from the stomates of leaves is the process of

 transpiration

200

The pattern of population growth that declines with increasing density is 

logistic growth

200

The major issue responsible for the decline of the jaguar was due to 

retaliation for killing livestock

200

Bateman’s Principle predicts that 

the female should be the choosing gender because number of eggs is limited and energetically expensive to produce

200

Species that exert strong effects on the communities they inhabit are 

keystone species

300

The female reproductive structure of flowering plants that contains the stigma, style and ovary is the  

carpel

300

Density dependent factors that affect logistic growth include 

competition, crowding, and predation

300

The marine mammal that has declined as a result of bycatch in illegal gill nets in the Gulf of California is 

the vaquita

300

The two theories of mate choice are

 Direct Benefits and Good Genes

300

Predator and prey interactions that result in changes to multiple trophic levels are known as 

trophic cascades

400

The medicinal use of the Madagascar periwinkle and Pacific yew is for

anticancer treatment

400

Fragmented populations connected through corridors such that gene flow still occurs is defined as a 

metapopulation

400

The major factor resulting in the decline of koalas is 

climate change

400

When animal reaches maturity and leaves its birth area to seek its own territory it is known as 

dispersal

400

Loss of an apex predator that results in an increase in the density of an intermediate trophic level predator is 

mesopredator release

500

The three classes of effect for neuroactive compounds are 

stimulants, depressants and hallucinogens

500

Individual demand on global ecosystems based on resource use and lifestyle is known as 

an ecological footprint

500

The common factor resulting in the decline of the northern spotted owl and orangutan is 

cutting of forest habitat

500

Two benefits of group living for prey species are 

safety in numbers and increased vigilance

500

Predation on one competitor that provides a competitive advantage to a second competitor is 

predator-mediated competition