The flow of chemical elements and compounds between living organisms and the physical <span>environment.</span>
Animal behavior researchers often refer to an activity associated with punishment or reward as an operant. The basis for training animals is the operant conditioning. It is a learning process where the animal would learn base from its behavior as it responds to its environment. In this type of learning, the behavior is either increased or decreased by the results that follows the action. It uses rewards and punishments in order to associate with the behavior. For instance, you are trying to teach your dog to fetch an object, if he succeeds in fetching the object, then you give your dog a treat. The dog would think that what it is doing is good and that it would get a reward from it so it would start learning the behavior.
Answer:
Structures that are present in plant cells and animal cells are membrane-bound organelles. For example, nucleus, mitochondria, and/or chloroplasts are not present in bacteria.
Explanation:
This is because bacteria are prokaryotic cells while plants and animals are eukaryotic cells.
Prokaryotic cells lack membrane-bound organelles like eukaryotic cells. Prokaryotic cells do not have a nucleus or organelles like mitochondria and chloroplasts.
Explanation: your right it is bacteria , could i pls get a brainlesttttt
The correct options are as follows:
2. THE VEGETATION IT EATS INCREASES AND THEN DECREASES REPEATEDLY WITH CHANGING SEASONS.
Some population of living organism usually undergo cyclic population changes in size. Cyclic oscillation results in repeated rise and fall in the population size of the concerned living organism over time. cyclic population changes are often brought about by interactions between populations of different species. For example, fluctuations in food availability can bring about cyclic population changes.
3. THE DEER POPULATION WILL INCREASE AND STRIP THE REGION OF VEGETATION.
The pumas and the panthers are the predators that feed on the deer. If these predators are eliminated, the number of deer in the region will increase drastically and this will be very detrimental to the health of the vegetation in the region. This is because, the deer, in their large number will feed unrestrainly on the vegetation until there is nothing left and this will affect the concerned ecosystem negatively.
4. THE ECOSYSTEM COLLAPSES.
A keystone specie refers to a specie of organism, which has a disproportionately large effects on its environment compare to its abundance or population. Such specie play crucial roles in the maintenance of the structure of the ecological community, that is, they largely determine the type and number of other specie in the community. Elimination of keystone species will leads to the collapse of the concerned ecosystem.
