Answer:
The correct option is A. they evolved from land mammals.
Explanation:
Evolution can be described as a process through which organisms in a species change over a period of time due to the natural selection of the environment. Those organisms that have many similarities in their functions or structures are considered closer to one another and have the same common ancestors.
The properties mentioned in the question about cetaceans resembles the properties of land mammals. For example, cetaceans lack gills and breathe air. Land mammals also do not have gills and need to respire for living. The cetaceans have fin bones which are similar to the limb bones in the land mammals. Hence, these observations show that cetaceas have evolved from land mammals.
Answer:
The largest population that an environment can support is called its carrying capacity.
Answer:
what there's nothing there
Explanation:
Natural selection occurs to give help the best survival chance to the organisms.
Answer:
Explanations: primary succession will take place because these plants will dominate after a wild fire has occured in the area since their growth is stimulated by heat hence the heat will result to the widespread of this type of plant
These plants are indeed dependant on succession events because they are only stimulated to grow through heat events
