<span>The answer would be A. negative punishment</span>
Answer:
the balance of nature will tip and food chains will be incomplete and lead to death of many organisms
Answer:
A species on which other species in an ecosystem largely depend, such that if it were removed the ecosystem would change drastically.
Explanation:
.Some examples : Sea Otter. The sea otter (shown below) is considered a keystone species as their consumption of sea urchins, preventing the destruction of kelp forests caused by the sea urchin population. ...
.Large Mammalian Predators. ...
.Sea Star
The answer is : D carries instructions for the traits of an organism
Because you can live 3 weeks without food. But only 3 days without water. That tells you there are important nutrients and minerals we can get from it. Also, water keeps us hydrated!
I hope this helps! :)