ECOLOGY
CHEMICAL CYCLES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Organisms depend on soil, but the development of soil does not depend on organisms.
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Living organisms do not play an essential role in the development of fertile soil.
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Plants and animals that live and die in soil return nutrients to the soil.
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Plant roots are not strong enough to weather rock they encounter while growing.
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Detailed explanation-1: -Symbiosis is an interaction characterized by two or more species living purposefully in direct contact with each other. The term “symbiosis” includes a broad range of species interactions but typically refers to three major types: mutualism, commensalism and parasitism.
Detailed explanation-2: -Animals are consumers and they all depend on plants for survival. Some eat plants directly, while others eat animals that eat the plants. In turn, some plants depend on animals to help spread their seed. Decomposing animal carcasses can also provide nutrients for plants to grow.
Detailed explanation-3: -In parasitism, one species (the parasite) lives with, on, or in a host species, at the expense of the host species. Unlike in predation, the host is not immediately killed by the parasite, though it may sicken and die over time.
Detailed explanation-4: -Commensalism is a relationship between species in which one benefits and the other is unaffected. Humans are host to a variety of commensal bacteria in their bodies that do not harm them but rely on them for survival (e.g. bacteria that consume dead skin).