Population Changes
Number of deaths in a population over time
death rate
When both organisms benefit?
Mutualism
What type of organism is on the bottom of the energy pyramid?
Producer
A group of white tailed deer on Johns Island is a_______________
population
What is the smallest unit of life called?
a cell
If the death rate is greater than the birth rate in a population then what happens to the population?
It decreases
when one species benefits and the other is harmed?
Parasitism
What is a predator called that is at the top of the food chain?
Apex Predator
A population of Leopard toads living in the same pond as Cattail plants is known as a __________
Community
The physical expression of a gene
phenotype
What is it called when organisms LEAVE a population
emigration
When one organism benefits and the other in unaffected?
Commensialism
What percentage of energy is transferred up each trophic level?
10%
Sand, water, salt, oxygen, temperature, ETC
The human body system responsible for removing waste
Excretory System
What are the four limiting factors?
Food, water, shelter, space
The Loa Loa worm crawls into a human's eye. The human can go blind and the Loa Loa worm gets a nice warm habitat. What type of symbiosis is this?
Parasitism
What does a primary consumer eat?
producers/plants
A freshwater pond with dirt and oxygen in it hosting a variety of fish, plants and other living things is known as an __________
Ecosystem
200x
There is 1 acre of land that can feed 40 deer. There are 80 deer in that field. What is the carrying capacity?
40
What is a host organism?
The organism that the parasite attaches to
What does a secondary consumer eat?
A primary consumer
One singe red fox is an example of an ____________
organism
What are the two cell parts that a plant cell has that an animal cell does not
Chloroplast and Cell wall