The symbiotic relationship in which the symbiotic benefits from the relationship but the host u neither harmed nor benefited is called: mutualism. parasitism. commensalism. competition. niche interactivity. Communities of organisms are made up of: populations of different species. different habitats. two or more populations of the same species. ecosystems. interacting niches. The primary source of energy for primary production is: high temperatures. sunlight. hydrogen bonds. glucose. carbohydrates. Chemosynthetic organisms use the energy from ____ to produce organic molecules. the sun chemical reactions the water other organisms. glucose The proper order of predator-prey relationships is herbivore-producer-carnivore. carnivore- producer-herbivore. herbivore-carnivore-producer. producer-herbivore-carnivore. carnivore- herbivore-producer. With each change in trophic level we can expect a _____ % transfer of biomass. 5 10 25 50 20 When nutrients are limited, they do all the following except: reduce metabolism. decrease growth rates. a fleet growth form. immobilize an organism. cause algal blooms. Solution 1. Mutualism: It is a way two organisms of different species exist in a relationship in which each indiviual benefits from the activity of other. Parasitism: It is a non-mutual relationship between species, where one species, the parasite, benefits at the expense of other, the host. Commensalism: is relationship between indiviuals of two species, in which one species obtains food or other benefits form the other without either harming or benefitting the latter. Compettion: Competition is an interaction between organisms in which both the species are harmed. The correct answer is Option C. 2. A community of organisms is made up of populations of different species that interact with each other in some way. Option A is the correct answer. 3. The primary source of energy for the primary production in plants is sunlight. Sunlight is trapped in the leaves of the plants and is used to synthesize glucose. The correct answer is B..

1. The symbiotic relationship in which the symbiotic benefits from the relationship but the host u
neither harmed nor benefited is called: mutualism. parasitism. commensalism. competition.
niche interactivity. Communities of organisms are made up of: populations of different species.
different habitats. two or more populations of the same species. ecosystems. interacting niches.
The primary source of energy for primary production is: high temperatures. sunlight. hydrogen
bonds. glucose. carbohydrates. Chemosynthetic organisms use the energy from ____ to
produce organic molecules. the sun chemical reactions the water other organisms. glucose
The proper order of predator-prey relationships is herbivore-producer-carnivore. carnivore-
producer-herbivore. herbivore-carnivore-producer. producer-herbivore-carnivore. carnivore-
herbivore-producer. With each change in trophic level we can expect a _____ % transfer of
biomass. 5 10 25 50 20 When nutrients are limited, they do all the following except: reduce
metabolism. decrease growth rates. a fleet growth form. immobilize an organism. cause algal
blooms.
Solution
1. Mutualism: It is a way two organisms of different species exist in a relationship in which each
indiviual benefits from the activity of other.
Parasitism: It is a non-mutual relationship between species, where one species, the parasite,
benefits at the expense of other, the host.
Commensalism: is relationship between indiviuals of two species, in which one species obtains
food or other benefits form the other without either harming or benefitting the latter.
Compettion: Competition is an interaction between organisms in which both the species are
harmed.
The correct answer is Option C.
2. A community of organisms is made up of populations of different species that interact with
each other in some way. Option A is the correct answer.
3. The primary source of energy for the primary production in plants is sunlight. Sunlight is
trapped in the leaves of the plants and is used to synthesize glucose. The correct answer is B.