Question

In grasslands, goats are prey for both foxes and tigers. If the population of goats decreases because of natural causes, what are three possible consequences?
There will be interspecific competition between foxes and tigers.
There will be intraspecific competition between foxes and tigers.
The energy received at the trophic level of carnivores will be less than the usual amount.
The energy received at the trophic level of carnivores will be more than the usual amount.
There will be decreased biomass at the trophic level of carnivores.


NEED THIS ASAP PLEASE.

Answer 1

Answer:

The correct statements are first, second, and the last statements.

As tigers and foxes survive on the common food, that is, goats, so, a decrease in the number of goats would limit the food resources for both the species.

Thus, both the species have to compete (interspecific) for the same limited resource in order to survive.

In addition, the intraspecific competition would also increase. For example, one skulk (a group of foxes) would compete with another skulk for the same goat.

The decrease in the number of goats would decrease the amount of biomass available at a secondary trophic level. Consequently, the amount of biomass present at the higher trophic level would also decrease as the biomass decreases as we move to higher trophic level.

Thus, the biomass available at the trophic level of carnivores would decrease due to the decrease in the number of goats.

Answer 2

The following option are correct:
1. There will be interspecific competition between foxes and tigers.
Competition for food between animals of different species is called interspecific competition while that between the same animal species is called intraspecific competition. 
2. The energy received at the tropic level of carnivores will be less than the usual amount.
The energy received at the trophic level become reduced because the amount of food available for the carnivores has been reduced.
3. There will be decreased biomass at the trophic level of carnivores.
Decrease biomass will occur at the trophic level of carnivores because, those carnivores that can not survive the food reduction problem will die off.