Answer:
Any thing or organism that regulates the size of a population of another organism is known as a limiting factor
Explanation:
Organism that regulates the size of a population of another organism is known as a limiting factor which helps to curtail such population. A limiting factor helps in leveraging population and there are factors used to regulate such population, the factors include; predator, parasites, among others
Answer:
semi-permeable
Explanation:
passive transport is the movement of substances along the concentration gradient and no energy is utilized in it
<span>One observation would be the physical size of Russia compared to other countries, despite a lack of visible borders from space. In addition, part of Russia's outline would likely be obscured by the various clouds and objects in the stratosphere; this would allow the astronaut to view potential cloud and weather patterns on earth. Also, an astronaut could see outlines of Russia's geography such as mountain ranges.</span>