Ihave 5 min to answer.

1. in an ecosystem, higher trophic levels generally require lower trophic levels because only one-tenth of the energy contained in one trophic level transfers up to the next trophic level:

group of answer choices

more space than

less space than

the same space as

all of the above

2. regarding interactions between species living in the same place, that is part of a biological community, when one species is affected positively by an interaction while the other species is unaffected, such as the malaria plasmodium and the mosquito, it is called:

group of answer choices

commensalism

mutualism

predation

competition

1. less space than

2. commensalism

Explanation 1: In an ecosystem, the population of the organisms of the lower trophic levels are considerably more than the organisms of the higher trophic level. This facilitates the transfer of energy from the lower to higher trophic levels due to the consumption of members of the lower trophic levels by the higher trophic levels.

The members of the higher trophic levels are less in number as compared to the members of the lower trophic levels hence, the members of the higher trophic levels will less space than the members of the lower trophic levels.

Explanation 2: The parasite plasmodium infects the female mosquito. It remains in the gut of the mosquito but does not cause any harm to it. When the mosquito bites another organism then the parasite invade the human or  other organism like animal, this parasite multiply inside the host organism and produces the symptoms of disease malaria. This association is the example of commensalism. Commensalism is a symbiotic association in which two organisms of distinct species live in close proximity. In this association one organism receives the benefit and other remains unaffected.