#Question id: 9192
#Section 2: Evolution
The oak tree pathogen Phytophthora ramorum has migrated 650 km in ten years. West Nile virus spread from New York State to 46 others states in five years. The difference in the rate of spread is probably related to
#Question id: 3490
#Section 4: Behavioural Ecology
Given below are some behaviors strategies.
A) Fixed action pattern, complex sequence of behavior, Once released and continuous to completion, even when there is change in surrounding environment
B) natural selection select that territorial behavior that is benefit is greater than cost
C) Imprinting, a form of learning in which a very young animal fixes its attention on the first object with which it has visual, auditory, or tactile experience
D) Donor benefits at a cost to the recipient, the behavior is altruistic; when the recipient benefits at a cost to the donor, the behavior is selfish.
Which one of the following correct combination of true and false?
#Question id: 11405
#Section 5: Applied Ecology & Evolution
Vulnerability to extinction can be linked to species
following characteristics. Which of the following statement are correct?
A. Endemism species are more prone to extinction than fragmented
B. Species that are capable of migrating between fragments of habitat, such as between mainland areas and islands, may be more resistant to extinction
C. Population variability species are less prone to extinct
D. Species with naturally long life spans may be more likely to become extinct
#Question id: 10743
#Section 1: Ecology
Darlington proposed that
#Question id: 3275
#Section 2: Evolution
When imbalances occur in the sex ratio of sexual species that have two sexes (that is, other than a 50:50 ratio), the members of the minority sex often receive a greater proportion of care and resources from parents than do the offspring of the majority sex. This is most clearly an example of ________.