Answer: Natural selection can be defined as the differential survival and reproduction of members of the population of a species that have suitable traits to survive in a population of species.
Explanation:
The punctuated changes in the population of species have been found inordinately faster in the geological time scale, but changes per-generation have been relatively slow. Also, the rate of evolution in such a population is also slow. The punctuated changes in the population are because of evolution but the per-generation changes are the outcomes of the natural selection, in which only the beneficial traits are passed from one generation to another.
Heart Blood vessels. (Arteries, Capillaries, and Veins)
Correct answer: B) They produce most of the food that the ecosystem relies on
Decomposers are the organisms that break down the dead and decayed plants and animals. They also help in the breakdown of waste of other organism.
They are found to be very important for the ecosystem, if they were not present in the ecosystem them plant would not be able to get essential nutrients which are necessary for their growth. Because it the decomposers who help in the recycling of carbon and the nitrogen cycle.
Decomposers break down the dead and decayed material into simpler organic matter into carbon dioxide and nutrients.
Example: bacteria, fungi
A B C OR D it would most likely be D all of the above :)
