Answer:
4
Explanation:
Producers are at the bottom of the energy pyramid because they prove the most energy, they make up most of the population, which is biomass. And the producers have the largest population, which is why they are at the bottom of the pyramid of numbers. Finally they are at the bottom of food chains and webs because they store the most energy inside of them.
Variation- Heritable differences that exist in every population are the basis for natural selection
Overproduction- Competition for resources for resources
adaptation- A trait that helps an organism survive and reproduce
decent with modification- Natural Selection will result in species with adaptation that are well suited for survival and reproduction.
Anxiety and guilt
<span>Ritualistic behavior seen in this disorder is aimed at controlling feelings of anxiety and guilt by maintaining an absolute set pattern of action. Although the person with an obsessive-compulsive disorder may be angry and hostile, the feelings of anger and hostility do not precipitate the rituals. Although the person with an obsessive-compulsive disorder may be embarrassed and ashamed by the ritual or feel hopeless and powerless to the ritual, the basic feelings precipitating the rituals are usually anxiety and guilt.</span>
Answer:
True, by active transport
Explanation:
The influx and efflux of molecules through the cell membrane depend on the concentration gradient.
When the molecules down their concentration gradient that is from higher concentration to lower concentration are known as passive transport but sometimes the cell has to transport the ions against the concentration gradient.
When the ions move against the concentration gradient, they use energy in the form of ATP molecules and then transport the ions. This is known as active transport.
In the given question, since the sodium ions move inside the cell against the concentration gradient by the active transport.
