#Question id: 10691
#Unit 10. Ecological Principles
Following some attributes of biological control agent of parasite
A) General adaptability to the environment.
B) High searching capacity for hosts.
C) K selected strategy
D) Low dispersal ability.
E) Minimal time lag effects in responding to changes in host numbers.
Following above attribute is not ideal for that biological agent?
#Question id: 10694
#Unit 10. Ecological Principles
Which of the following is characteristic of parasitoid/ predators?
a) consumer usually larger than resource
b) Consumer requires one host for complete development.
c) Habitat independent
d) Consumer takes long time to kill host
e) Consumer never kills their host
f) Host is free living
Which of the following is feature of parasitoid?
#Question id: 10695
#Unit 10. Ecological Principles
Consumer (+) and resource (-) interactions classified by the two factor
T- Duration or intimacy of the association between individuals
Kp- Probability that resource individuals will be killed
Which of the following some statement are correct?
A- Value of T for Grazer is greater than parasite
B- Value of Kp for predator is greater than parasite
C- Value of Kp for parasite is greater than parasitoid
D- Value of T for parasitoid is greater than predator
#Question id: 10752
#Unit 10. Ecological Principles
Which of the following is an example of Batesian mimicry?
A) a butterfly that resembles a leaf
B) a nonvenomous larva of a moth that moves like a venomous snake
C) a fawn with fur coloring that camouflages it in the forest environment
D) a snapping turtle that uses its tongue to mimic a worm, thus attracting fish
#Question id: 10755
#Unit 10. Ecological Principles
For two species A and B in competition, the carrying capacities, competition coefficients, per capita growth rate and population size are
KA = 1000 KB = 1200 α= .5 r A= .3 N1= 500 N2= 200
According to the Lotka-Volterra model, what is growth rate of species A?
#Question id: 10814
#Unit 10. Ecological Principles
A Population of N1 species is growing with N2 species with a growth rate (r1) of 0.15 in an environment with a carrying capacity K1 of 400, Density of N1 species 100, density of N2 species 50 competitive efficiency of N2 on N1 species 1.5. What is the approximate growth rate N1 species?