An indicator species is an organism whose presence, absence or abundance reflects a specific environmental condition. Indicator species can signal a change in the biological condition of a particular ecosystem, and thus may be used as a proxy to diagnose the health of an ecosystem.
Answer- True. Q-Is there a question?
D. This is a myth.
Advertisements are made for businesses and is
done if the product is not selling. It creates a need for the product resulting
in people buying it. Advertisements often include myths about the product to
promote it.
Answer:
it brings shame to the parents
another responsibility
<span>Excretion is the only effective way that invertebrates fight off diseases. Most of the aquatic invertebrates get rid of toxins within their body by the process of diffusion. Ammonia is usually the secreted product that leaves the surface of the body of aquatic invertebrates. This type of behavior enables vertebrates to maintain homeostasis within their bodies and to help them adapt to their specific environments.<span>
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