Affiliate Marketing Secrets

Can someone please help me with these two science questions?
The relationship in which one species benefits and the other is unharmed is known as what?
-a niche
-commensalism
-mutualism
-parasitism
Population size is limited by all of the following except what?
-biotic factors
-abiotic factors
-competition
-none of the above
Thank you!!!!!!

asymmetrical creature with no tissue, no tube within a tube body plan and virtually no niche? (Kingdom Animalia, Phylum Porifera)
Would an intelligent designer create parasitism? (Not commensalism, Not mutualism, pure parasitism)

1.A prairie dog, a hawk, and a banger all are members of the same….
a.niche
b. community
c. species
d.population
2. All of the following are examples of limiting factors for populations except
a. space
b. food
c. weather
3. In which type of interaction do both species benefit?
a. predation
b. mutualism
c. commensalism
d. parasitism
4. A diagram that shows how much energy is avalible at each feeding level in an ecosystem is a..
a.food chain
b. food web
c.energy cycle
d.energy pyramid
5. Which of these relationships is an exampleof parasitism?
a. a bird building a nest on a tree branch
b. a bat pollinating a saguaro
c. a flea living on a cats blood
d. ants protecting a tree that produces the ants only food

The dissapearance of a population in a given niche as a result of direct competiton with another species for a resource is called….
A. Competitive exclusion
B. Predation
C. Parasitism
D. Commensalism
-thanks for the help!!

And these other questions too please:
What is a habitat and give an example.
Symbiosis: Define
Mutualism
Give an example:
Commensalism
Give an example:
Parasitism
Give an example:
thanks for the help. Its for biology homework but i left my book at school and its due tomorrow. Help would be greatly appreciated.

And these other questions too please:
What is a habitat and give an example.
Symbiosis: Define
Mutualism
Give an example:
Commensalism
Give an example:
Parasitism
Give an example:
thanks for the help. Its for biology homework but i left my book at school and its due tomorrow. Help would be greatly appreciated.