Answer:
Cilia that line our respiratory system help trap dust and other foreign particles, thereby preventing them from further entering our body and causing problems.
Answer:
Vacoule
Explanation:
Vacoule is the membrane bound organelle that stores substances in the plant cell
Answer:
d. They are often keystone species
Explanation:
Top predators in an environment are the largest predators and sits on the top (apex) of the food chain in an ecosystem which do not have any natural predators.
As the top predators relative to its abundance has disproportionately large effect on its natural environment, they are the keystone species most of the time.
Hence option d. They are often keystone species is the right option.
Answer:
leopold
Explanation:
In 1884-85, a conference held in Berlin, Germany, decided the colonial status of central Africa. Suspicious of each other's ambitions in the region, the European powers and the United States agreed to grant Leopold possession of the Congo River basin.
Answer:
It increased their life expectaion.
Explanation:
It says it on the graph.
