Explain how density-dependent and density-independent factors may affect population growth.?
Density-dependent inhibition describes a situation in which population growth is curtailed by crowding, predators and competition. Density-independent inhibition, where other factors such as weather or environmental conditions and disturbances may affect a population's carrying capacity. The carrying capacity of a biological species in an environment is the population size of the species that the environment can sustain in the long term, given the food, habitat, water and other necessities available in the environment. For the human population, more complex variables such as sanitation and medical care are sometimes considered as part of the necessary infrastructure.
Can you explain these terms to me and maybe provide examples?
This is only a small portion of what I have to know for my experimental psych test tomorrow. It's over 5 chapters so I was going to ask a question about a couple, but I figured I'd put them all since I don't really understand them. 1. confounding variable 2. content validity 3. construct validity 4. order effect 5. practice effect 6. instrumentation 7. pilot study 8. hawthorne effect 9. stratified random sampling 10. content analysis
What are some examples limiting factors?
Limiting factors are variables that when changed, cause a change in another part of a system. The term is often used in ecology where examples would be temperature, water, food, population, disease, predators and natural resources. There are also density-dependent and density-independent factors where some limiting factors are related to the total size of the population and others are not. Humans can create limiting factors in an ecosystem through deforestation, hunting and pollution.
Help with environmental Biology...PLEASE!!!!?
I think it's fine to ask about homework problems you are stuck on, but, did you even TRY ONCE? c'mon... 1) Habitat