Question

4. Organisms are interdependent.
5. Energy is transferred among food chains.
6. Animals are helpful to plants.
7. Parasitism is a non-mutual relationship.
8. Air is a mixture of several gases
9. Not much sunlight is available to penetrate the forest floor in tropical rainforests.
10. Most trees have needle-like leaves in taiga forests.​

Answer 1

Answer:

4.All organisms in an ecosystem depend upon each other. If the population of one organism rises or falls, then this can affect the rest of the ecosystem. ... This means that all the organisms in an ecosystem are dependent upon each other. We call this interdependence .

5.Energy is passed between organisms through the food chain. Food chains start with producers. They are eaten by primary consumers which are in turn eaten by secondary consumers. They are then eaten by tertiary consumers and in a long food day these can be eaten by quaternary consumers

6.Animals help plants by pollinating them, and be helping to disperse seeds. The droppings of animals also fertilize plants.

7.In parasitism, the organism benefits at the expense of another organism. The organism that benefits from the association is called a parasite whereas the one that does not benefit but rather harmed is called a host. Thus, in parasitism the symbiotic relationship is non-mutual. ... host.

8.Air: The mixture of gases that form the atmosphere of the Earth. By volume, dry air is composed of nitrogen (78.09%), Oxygen (20.95%), argon (0.93%), carbon dioxide (0.03%), and several trace gases. Water vapor varies between zero and 4% volume.

9.Vigorous ground growth is only possible where plenty of light is available—where there is a break or thinning in the light-absorbing canopy which screens out all but the 0.5-5 percent of light that reaches the floor in the primary forest.

10.Needles are leaves. Most taiga conifers, with the exception of the tamarack and a few other species, keep their leaves in the winter. Most conifers keep their leaves for 2 - 3 years. A spruce can keep its needles for 15 years!

Explanation:

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