3. The relationship in which one species benefits and the other is unharmed is known as _____. (1 point)
a niche
commensalism
mutualism
parasitism
4. Population size is limited by all of the following except _____. (1 point)
biotic factors
abiotic factors
competition
none of the above
I'll be glad to check your answers.
Abiotic factors
3 is Commensalism
4 is none of the above. (~:
To answer question 3, we need to understand the different types of relationships that exist between species.
1. A niche refers to the role or position that an organism has in its environment. It is not a relationship between species but rather describes how a species interacts with its surroundings.
2. Commensalism is the relationship in which one species benefits, while the other is unaffected or unharmed. This is the correct answer.
3. Mutualism is a relationship in which both species benefit from each other.
4. Parasitism is a relationship in which one species (the parasite) benefits, while the other (the host) is harmed.
Given this information, the correct answer to question 3 is commensalism.
Now, let's move to question 4. To find the correct answer, we need to consider the factors that can limit the size of a population.
1. Biotic factors are living factors in the environment that can affect population size, such as competition for resources, predation, and disease.
2. Abiotic factors are non-living factors in the environment that can affect population size, such as temperature, rainfall, and availability of sunlight.
3. Competition refers to the struggle between organisms for resources, which can limit the size of a population.
Based on these options, the correct answer is "none of the above." The population size is limited by both biotic and abiotic factors, as well as competition. Therefore, all of the options listed can limit population size.