Answer:
External costs are costs imposed upon a third party when goods and services are produced and consumed. Goods and services with external costs are effectively being subsidised by society-at-large which ends up paying them
Explanation:
Answer: It's the cells, just without the chloralplast , but animals don't need that because only plant cells have chloralplast. So animals only get theses type of cells if they a herbivores,or omnivores because they eat plants and it helps them survive that way
Explanation:
Answer:
circulate blood around the body via the heart, arteries an veins, etc
Explanation:
Answer:
Tolerance.
Explanation:
Ecological succession may be defined as the change of an species, its structure and change in the ecological community with time. Two main types of succession are primary succession and secondary succession.
The earlier plant stage does not affect the late successional plant stages. These two plant stages does not have direct competition, they are showing the tolerance model. The different species tolerate the different successional stages of each other.