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What will happen to each higher population size if the first level population were to dramatically decrease?
The higher population size would also decrease. If the first level population decreased, the higher levels would have less to eat. This would cause the weaker organisms in the higher population group to die.
Population density determined by?
population size and per unit of area population size and per unit of area
Did the population increase or decrease in the 1970's and the 1980's?
It increased!!
How can a population decrease?
Population can decrease by a huge disease for example loads of people died from small pox. But such a disease is very uncommon as we have many vaccination's. Also if nuclear war starts huge amounts of people will die.
What happens when the death rate is higher than the birthrate?
Population begins to decrease i think
How do natural disasters affect population size?
it will decrease population size
What are two factors that can decrease the size of a population?
The two main factors that can decrease the size of a population are death and emigration.
What are two factors that increase population size and two factors that decrease population size?
Increase: Survival and Immigration Decrease: Death and Emigration
Which are two ways a population can decrease is size?
they can not mate and they can kill the population
What is the population of milk is in the bowl?
Population decrease in bowl by every 3 second millimeter. Size bowl important to population loss. Population decrease in bowl by every 3 second millimeter. Size bowl important to population loss.
What are 2 ways that the size of a population can decrease?
By Genocide, and by war..
What are two ways a population can decrease in size?
Death and emigration
How can the predators control the population size of its prey?
They can eat more which would decrease the population
What is RNA gene drift?
gene drift is when a population experiences a decrease in variation and population size.
What will happen to population if birth rate is lower than death rate?
population size will decrease
What are two ways the population can decrease in size?
Predators and limiting factors
How does the graph for the population size look when a population has reached its carrying capacity?
The population will plateau, and eventually begin to decrease.
