Answer:
In the given question, the crucial rivets represent keystone species.
Explanation:
An ecosystem comprises some of the species, which are essential to the survival of the other species in the system, these species are known as the keystone species. The keystone species can be an unassuming plant or a huge predator, and in the absence of a keystone species, the ecosystem may not thrive.
In an ecosystem, the keystone is regarded as one of the most essential parts. A keystone species refers to an organism, which helps in sustaining the system together. Some of the ecosystems may lose their tendency to amend with the changes in the environment if their keystone species get vanished.
There are three kinds of keystone species considered by various scientists. These are ecosystem engineers, predators, and mutualists.
Answer:
The correct options are:
- <em>The population of birds with large beaks will increase on the island.</em>
- <em>The trait for large beaks will be passed on to future generations through natural selection.</em>
Explanation:
According to the theory of natural selection, those organisms tend to survive in an environment which are better adapted to live in an environment and which can better adapt to changes that occur in an environment.
The drought caused the small, soft seeds to decrease more in number as compared to the large, hard seeds. As a result, the birds having large beaks were better adapted to live in the environment as compared to the birds having small beaks. So the population of the large beak birds increased and they passed their characteristics to the future generations.
Answer:
2: Carnivores
3: Indirectly from the grasshopper
4: The energy is passed from the food to the animal
5: No, a carnivore gets it's energy indirectly from animals that eat plants
6: From the sun
7: The carnivore gets energy from the herbivore
8: From plants and other animals.
9: Herbivores
10: Indirectly from the herbivore
Explanation:
Carbon Hydrogen Nitrogen Oxygen Phosphorus Sulfur