Population Interactions

Both the species in this interaction gets benefitted

• Mutualism

• Competition

• Predation

• Parasitism

In this interaction, one species is harmed, whereas the other species is neither harmed nor benefitted

• commensalism

• Parasitism

• Amensalism

Which population interaction helps in transferring energy fixed by plants to higher trophic levels?

• Predation

• Competition

• Parasitism

Which among the following is a predator in broad ecological context?

• Grass preparing starch with sunlight

• Water hyacinth vegetatively propagating invasively

• A sparrow eating a seed

When all the starfish were removed from an intertidal area, more than 10 species of invertebrates became extinct, because of

• loss of starfish friends

• lack of nutrients from starfish body

• interspecific competition amongst themselves

• not sure about the answer

Cardiac glycosides are produced by which prey among the following options?

• Monarch butterfly

• cryptically colored frogs and insects

• Poppy plants

• Calotropis

Which among the following is an example of competition between closely related species?

• Competition between Balanus Barnacle and Chathamalus barnacle

• Competition between Flamingo and fishes for zooplankton

• Competition between Abingdon tortoise and goat in Galapagos island

Name the ecologist/ scientist who stated that two closely related species competing for the same resource cannot co-exist, and the competitively inferior one will be eliminated eventually.

• Darwin

• Gause

• Connell

Human liver fluke depends on two vectors/ intermediate hosts to complete its life cycle. They are

• mosquito and plasmodium

• cow and goat

• snail and fish

When cuckoo lays its eggs in crow's nest, the chances of crow detecting foreign eggs and ejecting them from the nest is less, because

• Cuckoo's eggs resemble that of crow's in size and colour.

• Crow is absent minded, so fails to detect cuckoo's eggs in its nest

• Male and female Crows never stay inside their nest, they venture out always in search for food, far away from the nest location