Understanding Interactions Among Living Beings

The video explores how living beings interact to survive and maintain ecosystem balance. It introduces intraespecific and interespecific relationships, focusing on the latter. The four main types of interespecific relationships are discussed: predation, where one organism feeds on another; parasitism, where a parasite harms but doesn't kill its host; mutualism, where both species benefit; and simbiosis, where both species depend on each other for survival. Examples are provided for each type. The video concludes with a call to subscribe for more educational content.

Why do living beings establish relationships with each other?

• To avoid predators

• To compete for resources

• To survive and maintain ecosystem balance

• To migrate to new territories

What is the main difference between intra-specific and inter-specific relationships?

• Intra-specific is always beneficial, inter-specific is always harmful

• Intra-specific is always harmful, inter-specific is always beneficial

• Intra-specific involves the same species, inter-specific involves different species

• Intra-specific involves different species, inter-specific involves the same species

Which of the following is an example of predation?

• A fungus and an alga living together

• A tick feeding on a dog

• A bird eating insects off a mammal

• A bear catching and eating a salmon

In a predation relationship, what happens to the prey?

• It remains unaffected

• It benefits from the relationship

• It is harmed but not killed

• It is killed and eaten

What is parasitism?

• A relationship where both organisms are harmed

• A relationship where one organism is killed

• A relationship where one organism benefits and the other is harmed

• A relationship where both organisms benefit

Which of the following is an example of parasitism?

• A bird eating insects off a mammal

• A tick feeding on a human

• A fungus and an alga living together

• A bear catching and eating a salmon

In mutualism, how do the species involved benefit?

• One benefits and the other is harmed

• Both benefit but can survive without each other

• One benefits and the other is unaffected

• Both benefit and cannot survive without each other

Which of the following is an example of mutualism?

• A tick feeding on a dog

• A bird eating insects off a mammal

• A fungus and an alga living together

• A bear catching and eating a salmon

What is symbiosis?

• A relationship where both organisms benefit and can survive without each other

• A relationship where one organism benefits and the other is harmed

• A relationship where both organisms benefit and cannot survive without each other

• A relationship where one organism is killed

Which of the following is an example of symbiosis?

• A tick feeding on a dog

• A fungus and an alga living together

• A bird eating insects off a mammal

• A bear catching and eating a salmon