The question of biology in the first year of junior high school, to answer and solve the problem, th

It is known that there are many creatures living in the deep ocean where there is no light, and they usually feed on the carcasses of fish and other fish that have fallen to the bottom of the ocean, so it is not correct to say that there are many creatures in the depths of the ocean. In addition, an ecosystem has been found near a volcanic crater in the deep ocean that does not rely on sunlight as an energy source, which will be talked about in high school in the future.

Item b should be correct, because the biosphere is the place on Earth that is suitable for living things.

The answer is that there is also life in the deep ocean, which depends on chemicals from submarine volcanic eruptions to sustain life.

The biosphere refers to any area on Earth where the effects of life are felt and felt. It is a general term for surface organisms, including microorganisms and their bottom-up environment, and is a unique sphere of planet Earth. It is also the space where human beings are born and live.

The biosphere is the largest ecosystem on Earth. Encyclopedia.

b a deep sea is not light, but there are many deep sea creatures, b life can only live in the biosphere

If you don't understand something, you can ask.

BA Organisms are also present in the depths of the ocean, and some organisms are more primitive.

All areas of the earth where there is a living thing belong to the biosphere.

A Right, refers to a struggle between individuals of the same species for food, habitat or other living conditions.

B False, intraspecific mutual aid refers to the phenomenon that individuals or populations of the same species cooperate with each other in the process of life to maintain survival.

c Wrong, interspecific struggles occur between individuals or groups of different species of organisms.

d is also wrong, and so on, it is also a phenomenon in which different organisms cooperate with each other in the course of life.

This is the exchange of information between organisms of the same species

Intraspecific fighting, because only wolfdogs can recognize the smell of other wolfdogs, and lions don't care about the wolfdog's markings... No one can smell ...

The control group was C, and the experimental group was A and B.

4) Left to right.

5) Because the osmotic pressure on the salt side is greater than that of the paramecium itself, it can avoid damage.

It is beneficial for its brightness.

Paramecium can take advantage of the pants to avoid damage.