#Question id: 10840
#Section 2: Evolution
Why are monarch butterfly’s toxic?
#Question id: 3482
#Section 2: Evolution
Which statement below about mating behavior is correct?
A) Some aspects of courtship behavior may have evolved from agonistic interactions.
B) The degree to which evolution affects mating relationships depends on the degree of prenatal and postnatal input the parents are required to make.
C) The mating relationship in most mammals is monogamous, to ensure the reproductive success of the pair.
D) Polygamous relationships most often involve a single male and many females, but in some species this is reversed
#Question id: 16753
#Section 5: Applied Ecology & Evolution
#Question id: 10652
#Section 2: Evolution
Which factors (limited space or overcrowding; limited food; Predators; parasite and diseased) tend to act in a density-dependent manner; Tony Sinclair (1989) many studies of density dependence in 51 populations of insects, 82 populations of large mammals, and 36 populations of small mammals and birds. Which of the following observation is most likely true?
a) Insects showed a wide variety of causes of density dependence and no one density-dependent factor was of overriding importance
b) The lesser the amount of available food, the greater the mortality of large mammals
c) Space and social interactions were more important for smaller mammals and birds, because they are more territorial
#Question id: 11510
#Section 2: Evolution
Life history trait varies environmental condition, both survivorship and fecundity is habitat dependent in practice but intrinsic rate of increase can change as environmental change. Following life history trait is characteristic of r-selected species?
A) Later age at first reproduction B) Long generation time
C) Multiple broods per life spans D) Large number of offspring per brood