Unit B Flashcards
What are the different mutations?
Neutral, beneficial, harmful
What are the layers of soil?
Litter, topsoil, subsoil and bedrock
What is subsoil made up of?
Mostly rock, less organic matter
What is birth potential?
The maximum number of offspring per birth
What’s a sibling?
Offspring from the same or one similar parent
What does density dependant mean?
Affects a population because if the density of the population
What is clear cutting?
Removal of all trees in an area
What is ecology?
The study of interactions between organisms and their living and nonliving environment
What type of mutation is rare?
Beneficial
When temp goes up what happens to oxygen levels?
They go down
During summer, what is the top layer of s lake?
Epilimnion
What is a homologous feature?
Feature similar structure but different functions
What are chromosomes?
They are packages of genes?
What does the theory if gradualism state?
The idea that speciation takes place slowly
What is a niche?
An organisms role is their ecosystem
What are four factors that effect a terrestrial ecosystem?
Soil, available water, temperature, sunlight
What biome has a low drainage rate?
Muskeg
What is a canopy?
Upper layer of vegetation in a forest
What are Canada’s aquatic biomes?
Freshwater and marine or salt water
What are the three aquatic zones?
Littoral, limnetic, and profundal
Does cold or warm water hold more dissolved oxygen?
Cold
What is a carrying capacity?
The maximum number of individuals of a species that can be supported at one time by an ecosystem
Is disease an abiotic or biotic factor?
Biotic
What are 3 density independent factors?
Flood, fire, drought
