1.
Where would competition be more intense -> Between the same species (intraspecific) or between two different species (interspecific)?
Correct Answer
A. Intraspecific
Explanation
True! Intraspecific competitions is more intense because same species have the same exact needs, whereas other species just have correlating needs.
2.
There are 5 species of birds, all of them eat fruits, but each bird eats a fruit of different size. This is an example of:
Correct Answer
C. Resource partitioning
Explanation
Resource partitioning refers to the division of resources among different species in order to minimize competition. In this scenario, each bird species has evolved to eat a fruit of a different size, which allows them to utilize different resources and reduce competition for food. This adaptation is an example of resource partitioning, where each species has a unique niche or role in the ecosystem, promoting coexistence and reducing competition.
3.
Keystone species are
Correct Answer
B. Species that determines that shape of the community
Explanation
A good example of keystone species? Humans...
4.
When are wildfires good?
Correct Answer
C. Only to prevent from less fire-resistant plants to emerge that can cause greater fires
Explanation
Wildfires can be beneficial when they are used as a preventive measure to prevent the emergence of less fire-resistant plants that can lead to more severe fires. By allowing controlled fires to burn away the undergrowth and smaller vegetation, the risk of larger and more destructive wildfires can be reduced. This practice is often used in forest management to maintain a healthier ecosystem and reduce the fuel load that can contribute to more intense fires.
5.
Plants grow in the best manner when silt, clay and sand are in equal distribution in the ground.
Correct Answer
A. True
Explanation
Indeed they do. And that condition is called loam.
6.
What are holoparasites?
Correct Answer
B. Plants that do not undergo pHotosynthesis and get all their resources from other plants.
Explanation
Holoparasites are plants that do not undergo photosynthesis and instead obtain all their resources, such as water and nutrients, from other plants. They rely entirely on their host plants for survival and cannot produce their own food through photosynthesis. This makes them completely dependent on their host for their nutritional needs.
7.
Parasitoids are parasitic flatworms that always kill the host they're in
Correct Answer
B. False
Explanation
Indeed, parasitoids are insects, not flatworms.
8.
What are the limiting reasons that a distant island will quit generating new species?
Correct Answer
C. Answer A+B are correct
Explanation
The correct answer is that both the distance effect and the area effect are limiting reasons for a distant island to stop generating new species. The distance effect refers to the fact that as an island becomes more isolated, it becomes less likely for new species to reach it through dispersal. The area effect, on the other hand, suggests that smaller islands have fewer resources and habitats available, limiting the potential for new species to evolve. Therefore, both of these factors contribute to the cessation of new species generation on a distant island.
9.
Eutrophication
Correct Answer
D. General name for the procedures that leads to the enrichment of a body in water with nutrition
Explanation
The correct answer is the general name for the procedures that lead to the enrichment of a body of water with nutrition. This explanation is supported by the term "eutrophication," which refers to the process of excessive nutrient enrichment in a body of water, leading to increased plant growth and potentially harmful algal blooms. This process can occur naturally or as a result of human activities such as agricultural runoff or sewage discharge.
10.
The benthic province including all the sediments and rocks that are found in the bottom of the ocean
Correct Answer
A. True
Explanation
The statement is true because the benthic province refers to the bottom region of the ocean, including all the sediments and rocks found there. This province is home to a wide variety of organisms that are adapted to living in this environment, such as deep-sea corals, sponges, and various types of marine life. The benthic province plays a crucial role in the overall health and functioning of the ocean ecosystem.
11.
Generic drift contributes to the genetic resemblance between separated communities
Correct Answer
B. False
Explanation
Genetic drift creates a genetic divergence. Gene flow contributes to the genetic resemblance between separated communities.
12.
The first pattern of airflow is created by
Correct Answer
A. The sunrays at the equator
Explanation
The first pattern is created by the sunrays, then the unequal distribution of land masses, then earth rotation, creates the third and last pattern.