The right option is; -the single layer membrane surrounding the outside of the cell allows for the easy removal of waste
The cell membrane is a biological membrane that surrounds a cell and separates the contents of the cell from its external environment. The cell membrane is composed of lipids and proteins and its main function is to protect the cell from its surroundings. The cell membrane also controls the molecules that enter and leave cell.
I'd say stone tools. Stone can be chiseled or left alone and be used as a weapon to defend one's self, or as a way of getting food.
Answer:
The slow rate at which diffusion occurs over large distances.
Explanation:
Circulatory system may be defined as one of the most important system of the body that contains arteries and veins. Two main types of circulatory system are open circulatory system and closed circulatory system.
The blood flow all over the body to each cell with the help of the circulatory system. Arteries carry oxygenated blood and veins carry deoxygenated blood in the body. The circulatory system increases the rate of blood flow as diffusion do not allow the transport at long distances.
Thus, the correct answer is option (c).
Answer:
Answer A: A key example of biotic and abiotic protagonists is the presence of rocky structures that exist in the mountains of southern Argentina (Patagonia) that thanks to them exist the ideal temperatures for the procreation of animals such as the Patagonian condor and the possibility of form nests in these rocky structures that secure their young.
Answer B:
The explanation for this is that they have populations that increase in number and have their niches realized and constant resources necessary to develop the species in this way, considering the dominant species in the area and the one that predominates, in the case of fundamental niches. , they are necessary and even obligatory niches for many populations, which if populations do not go to them, they die, extinguish, or decrease their number, that is why in the face of this reality made up of a fundamental niche since it is fundamental to persist life of the population.
Answer c:
Two key principles are: one, maintain the equilibrium, that is why one seeks to have an environmentalist position preserving nature, and two considering that we are part of that balance but that does not give us the right to break it with environmental contamination, intervention of natural food systems and many other factors.
Explanation:
Answer:
but you got to figure it out
