Mutual aid, struggle, predation, competition, parasitism, mutualistic symbiosis each biological rel

Mutual aid; Individuals within a species of species are united by helping each other in the presence of natural enemies or other dangerous situations"Partners"Get out of danger.

Example; A herd of wild horses grazing on the grassland, and when they are spotted by wild lions and attack, the wild horses form a circle, with the big and strong ones in the outermost layer and the small old ones in the inner layer. The head of the wild horse on the outer layer thought about it, and kicked the lion with its hind hooves, and the lion couldn't resist it and left, so the wild horse herd was safe.

Struggle; Individuals within a species fight each other for food or mates, and the stronger ones win, which is also biological evolution.

Indispensable.

Predation; A carnivore (usually a carnivore.)

Attack his things secretly or directly when hungry, and eat them to keep himself alive.

Compete; Species compete for resources such as food and living space, so that competitors are driven out of a certain place to survive.

Parasitism; A small organism survives inside or on the outside of another species, making itself survive by absorbing nutrients from its host. There are good and bad parasites, a parasite in the gut of termites.

It can help termites digest hard substances such as grass, which is beneficial to termites; Most of the human parasites will suck human nutrients or undigested food, which is harmful to people.

Mutualism; Between two different species, each needs the other to provide itself with nutrients that they cannot absorb from outside food. For example; Legumes.

With rhizobia, buckets cannot absorb gases such as NO2 from the atmosphere and convert them into nitrogen in their own bodies, while rhizobia can also absorb the organic matter of Bucket plants to survive. Wait a minute.

These are indispensable in nature.

Hello! Mutual aid: Wolves prey.

Struggle: Fight for a mate.

Predation: Wolves prey on rabbits.

Competition: Weeds compete with cabbage for nutrients and living space in the soil.

Parasitism: Ascaris parasitizes the human body.

Mutually beneficial symbiosis: corals (Cordyceps symbiosis), rhizobia and legumes.

It only represents a personal opinion, don't spray if you don't like it, thank you.

Clownfish and anemones.

Zooxanthellae and corals.

Spear shrimp and gobies.

Clownfish and. Coral?

Sharks and what fish.

Sorry forgot, only remember that there was clownfish coral.

The ring-tailed lemur (scientific name: Lemur catta) belongs to the primitive primate family, with a long snout and lateral eyes that resemble a fox, and is named after the tail link markings. More than 5-20 groups of people, inhabiting dry areas with many rocks and few trees, each with its own territory.

Good at jumping and climbing, it is a lemur with strong terrestrial habitat, and its staple food is insects and fruits.

Intraspecific mutual assistance and intraspecific struggle between organisms of the same species;

There are predatory, parasitic, symbiotic, competitive, cooperative and other relationships between different organisms.

Predatory relationship: The phenomenon in which one organism feeds on another organism. For example, sheep eat grass and frogs prey on insects.

Parasitism: The phenomenon in which one organism lives in or on the surface of another organism and takes nutrients from the body or surface of that organism to survive. For example, dodder seeds are parasitic on other plants.

Symbiotic relationship: A phenomenon in which two organisms live together and benefit each other, and it is difficult for one or both of them to survive after leaving. Such as leguminous plants and rhizobia.

Competition: The phenomenon of two organisms living together and competing with each other for resources, space, etc. Such as weeds and crops competing for nutrients and living space.

Partnership: A relationship in which two organisms live together and benefit each other The two can live independently after being separated from each other. Such as hermit crabs and sea anemones.

(1) As can be seen from the figure, it is A that represents the mutually beneficial symbiotic relationship, because A and B in Figure A increase and decrease at the same time; The competitive relationship is B, because in Figure B, when the living conditions are sufficient, the number of C and D increases, and when the environmental conditions are limited, the number of C and D will decrease, competing with each other for food, which is a competitive relationship; The predation relationship is C, because when E increases in Figure C, it will inevitably cause the number of F to decrease, and they will influence each other and restrict each other

2) In A, when the quantity of A increases, the number of B increases, indicating a mutually beneficial symbiotic relationship; In B, when the living conditions are sufficient, the number of C and D increases, and when the environmental conditions are limited, the number of C and D decreases, which is a competitive relationship; In C, when E increases, it will inevitably cause the number of F to decrease, which belongs to the predatory relationship

Therefore, the answer is: (1) A; Second; C

2) increase; Increase; Decrease; Decrease;

Answer C Two creatures that coexist in mutual benefit and symbiosis "live and die together, share hardships", are interdependent and interdependent, and cannot live independently or at least one of them does not live well after separation; The parasitic organism receives nutrients from the host and is therefore heterotrophic, while the host can be both heterotrophic and autotrophic; Competition occurs between two different organisms, and the competition for living resources between individuals of the same species belongs to intraspecific struggles and cannot be called competition.

The relationship between organisms and organisms is common: predation relationship, competition relationship, cooperative relationship, parasitic relationship, etc. The seven-star ladybug preys on aphids, and the seven-star ladybug eats aphids in order to obtain food to survive, which belongs to the predatory relationship; The rice and weeds in the field compete with each other for sunlight, water, inorganic salts and living space, which is a competitive relationship. Fungi grow by absorbing organic matter from decaying tree stumps, and fungi obtain nutrients from tree stumps and cause damage to tree stumps, which is a parasitic relationship

Therefore, a

Choose A... Intraspecific mutual aid, as the name suggests, refers to the mutual help of individuals within a population, such as:

The functions of queen bees, drones, and worker bees are different, but the division of labor and cooperation are conducive to the survival and reproduction of bee colonies.

Examples of ants, termites, locusts, fish, birds, herbivorous mammals, etc., further clarify that intraspecific mutual aid is a form of intraspecific relationship, and that intraspecific mutual aid is divided into two main types: "social" and "non-social" swarming.

And the intraspecific struggle will eliminate the old, weak, sick and disabled individuals within the population, so that the whole population will develop in the direction of health and high energy... How can a population without intraspecific struggle be eliminated and retained? How to keep updating and evolve in a good direction?

According to Darwin's theory of biological evolution, intraspecific struggle and intraspecific mutual assistance are both beneficial to the survival of species within a population, and have positive significance for the survival of species within a population!!