Populations

​population and resources

Births and deaths affect its size because if the number of births and deaths in a given time equal then the population size will be stable.If there are more births than deaths in a given time then the size of the population will increase.If there are fewer births than deaths then the size of the population will decrease.

​population and resources

A system can be stable even as things are being added to and removed from it. If the amounts being added and being removed are not equal then the system will change.

​population and resources

If the number of births and deaths in a given time are equal then the population size will be stable.

chapter 1;​population and resources

If the number are more births than deaths in a given time then the size of the population will increase. If there are fewer births than deaths then the size of the population will decrease,

chapter 2;​what could have caused the births to increase or the deaths to decrease in the moon jelly population.

A change to the zooplankton population may have caused births to increase in the moon jelly population.

chapter 2;Investigation Question

The number of births in a population because a change to a resource population can lead to a change in the number of births in a consumer population.

chapter 2; notes

The number of deaths in a population can change because a change to a consumer population can lead to an increase or decrease to deaths in its resource population.

.Organism need to release energy from storage molecules in order to reproduce.

chapter 2;notes

Organism in consumer populations get energy storage molecules from eating Organism in resource populations.

chapter 3:how could a population besides the zooplankton or sea turtles have caused the moon jelly population to increase.

The jellies may have increased because in phytoplankton leading to an increase in zooplankton a decrease in walleye Pollock leading to an increase in zooplankton or an increase in orcas leading to a decrease in sea turtles. Two populations can complete for the Same resource population.

chapter 2;notes

The larger the consumer population the more energy storage molecules it will need. Therefore it will eat more causing more deaths in the resource population.

chapter 2;notes

The larger the resource population the more energy molecules are available for its consumer populations.

chapter 2;notes

The more energy storage molecules available the more the organisms in that population can reproduce.

Chapter 3: investigation question

Two populations can complete for the same resources population. A change to one of these populations affects the size of the other. The size of a population can be affected by any population that is connected to it in a food web even if they are not directly connected.

Chapter 3: notes

. Two populations can complete for the same resource population. A change to one of these populations affects the size of the other.

Chapter 3: notes

The size of the population can be affected by any population that is connected to it in a food web, even if they are not directly connected.