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Immigration, diseases, different movements, reform or otherwise,a harsh winter storm can kill many plants and animals.
Most of the times chemicals from factories are dumped in rivers due to this fishes die and when fish die pelicans or any bird dependant on fishes survives.
Aliza Upton
Wiki User
∙ 13y agoPopulation - The amount of a certain species in a certain area.
If there is a disorder in the food chain or web it would cause on species in the community to grow larger than another.When one species in that community or ecosystem grows larger then another it makes the population grow bigger in size.
Wiki User
∙ 12y agoan increase of Birth Rate (the number of people giving birth) and a decrease in Death Rate (the number of people dying) can lead a huge population change in the fact that the pop will become larger. an example is India of which has a high birth rate and as a result in 30 years will be the country with a highest pop overtaking china
Wiki User
∙ 14y agoWiki User
∙ 13y agobirths, deathes, incomers, outcomers.
Wiki User
∙ 12y agoreproduction
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In a certain ecosystem owls are predators for mice. The owl population increases and they eat more mice. This causes the mouse population to decrease. What happens next?
the population of owls decreases
In a certain ecosystem, owls are predators for mice. The owl population increases, and they eat more mice. This causes the mouse population to decrease. What happens next?
the population of owls decreases. (Apex)
What causes mold to increasedecrease?
mold increases by moisture and it decreases by lack of moisture. mold increases by moisture and it decreases by lack of moisture.
When temperature increases density increases or decreases?
An increase in temperature usually causes an increase in volume. Since the mass doesn't change, density decreases. tt
When does a population grow?
when the death rate decreases and the birth rate increases
What happens to population when the death rate decreases?
Birthrate Usually Increases.
The influence of genetic drift on allele frequencies increases as?
population size decreases
What relationship occurs between prey and another organism?
predator kills and eats prey for its survival. When the predator population increases, the prey population decreases because of too many hunters. When the prey population decreases, the predator population decreases because of the lack of food. Then, the prey population increases because there aren't that many predators and the process repeats itself.
What is population inversion?
Inverse population density is when the population density decreases, the population growth rate also decreases. This is opposite to density dependent because here the population growth rate decreaes as population density increases.
What are the physiological and pathological causes of increases and decreases Hb in blood?
Q bataon bey
What is inverse population density?
Inverse population density is when the population density decreases, the population growth rate also decreases. This is opposite to density dependent because here the population growth rate decreaes as population density increases.
The size of a population can get smaller with no influences from migration if birthrate or death rate does what?
decreases; increases
