A junior high school biology question on animal behavior.

aCommunity behaviour refers to the consciousness that one cannot survive without the community. For example, ants are a close-knit group, and there is no such meaning in the question.

I know!!!

Answer: B Defense is directed at the enemy, for example, when a hedgehog is attacked, this behavior is aimed at the enemy, and it is a defensive behavior. The meaning of this topic is obviously the exchange of information between peers, which should be a community action.

Community Behavior!!

The upstairs brother said it very well, and added that the question clearly tells you to "inform your companion", and you should pay attention to the information given in the question to solve the problem in a middle school question like this.

The deer did not defend against it, but was a warning!!

Defensive behavior, using body language to alert peers when an enemy is spotted. It's like when a large group of monkeys come out to move, there will be monkeys to keep watch and alert their companions with their cries when they see danger!

1 Strictly speaking, there are many kinds of snails, and there are certain differences in the response to the external environment, they generally live in relatively humid places, and avoid direct sunlight in the plants, that is, they generally follow a variety of conditions such as moisture, sunshine, temperature, etc., of course, moisture and temperature are the main control factors, and the impact of sunlight is relatively small. For example, snails living in cold regions hibernate because of the temperature; Tropical species also become dormant during the dry season because of moisture, and the mucus secreted during dormancy forms a dry membrane to close the shell opening, and the whole body hides in the shell, and when the temperature and humidity are right, it will come out to move.

Therefore, specifically from the topic, the so-called "somewhere" snail in the question is in a dormant state in the "summer", which is undoubtedly related to the aforementioned moisture factor, you just need to remember that snails mainly live in dark and damp places, then there is no doubt that moisture is the main factor, but in some cases the temperature plays a major role in hibernation, and that's it

It should be moisture, because snail pits don't appear under sunlight conditions, and you can take a closer look, snails rely on water, and they evaporate when they appear in sunlight. So, in order to survive, the snail will hide under damp shade and no sunlight to retain moisture.

Snails have high requirements for water, and when they lack water, they will hide in a dark place, secrete mucus to form a membrane to close the shell mouth, enter a dormant state, and wake up again when the rain is sufficient.

Snails are mollusks, there is a layer of mucous membranes on the body surface, the requirements for water are relatively high, the temperature is high in summer, the air humidity is low, and the snail cannot be exposed to the sun for a long time, otherwise it will die of dehydration.

It's all in the textbooks, so find it yourself.

2. It's different. Each biological group has its own different way of communicating information. For example, ants communicate through their antennae, bees communicate through "dancing", and so on.

5. D The answer is not an absolute standard, it is written according to what I have learned, and it is better to consult the teacher if it is a formal exam.

Aquatic is carp, and the rest is terrestrial.

Chickens and bats have feathers.

It can also be classified according to the type of animal, whether it is a bird or something, and the results are different depending on the classification criteria.

There are four kinds of animals: chickens, silkworms, carps, and bats, please classify them: the first division: classification criteria:

Aquatic or terrestrial taxonomic results: (1) Aquatic animals: carp (2) Terrestrial animals:

The second division of chickens, silkworms, and bats: classification criteria: with or without feathers classification results:

1) Feathered animals: chickens (2) Featherless animals: silkworms, carp, bats and other classification criteria, such as whether they can fly, whether they have feet, etc.

It can be seen that the classification must be carried out according to certain characteristics, and the classification results will be different depending on the classification criteria.

50 pcs. When it was 10 times, it was 8, and now it is 4 times that of lead cultivation and locust milling, and the magnification of the middle and late times is reduced by a factor and the area is expanded by a time.

then when it is 4 times, you will see 8*.

It should be 20 of them.

The greater the magnification of the objective, the fewer cells are seen, and vice versa. Therefore, it should be the number of traces: 10 4 8 = 20.

Is the whole field of view 8 or a row?

If you open your eyes and take the whole volcanic field of vision, it is 8*10 4*10 4 and you will close early.

Let 4 times see 1 4 s; 10 times the same attack hand in hand is seen 1 10 s.

8 for 1 10 s; So s=80;4 times the number seen is 1 beat, and the hidden wheel is 4 s=20

I think 2 is mainly the normal instinct of zebras, which does not belong to animal behavior, and animal behavior can be divided into foraging behavior, storage behavior, aggression behavior (same kind), defensive behavior (different types), breeding behavior, rhythmic behavior (migratory behavior, migration behavior), community behavior, orientation behavior, communication behavior, etc. From the second subparagraph, he does not fall under any of the definitions.

1) You should know what you should know.

1. The behavior of animals mainly includes: (

a. Foraging behavior B. Reproductive behavior C. Defensive behavior D. Including the above three items.

2, Bai Juyi's poem: "I have to come and go for a long time, and I am afraid of hunger in the nest." After 30 days of hard work, the mother and thin chicks gradually gained weight. This describes the ( ) of the female swallow

a. Feeding behavior B. Reproductive behavior C. Aggressive behavior D. Defensive behavior.

3. After the beetle encounters the enemy, it will roll down from the plant to the ground and pretend to be dead, and wait for the opportunity to escape after the danger is removed

a. Foraging behavior B. Defensive behavior c. Reproductive behavior D. Social behavior.

2) Imitation evaluation of standard test Lee.

1. The following are not the reproductive acts of animals

A, male and female frogs hug each other B, hole preparation spoiler opening screen C, nesting D, rooster announce.

2. Among the following idioms, what does not belong to animal behavior is ( ).

A, the donkey skills are poor B, the cunning rabbit three holes C, the frog at the bottom of the well D, the old horse knows the way.

3. The following are not animal defense behaviors (

a. When the dog encounters a person who bends down to pick up stones, it runs away b. The gecko breaks its tail.

c. The body color of the butterfly is shaped like a dead leaf D. The infrared receptors of the rattlesnake sense the position of the bird and thus prey.

4. In the breeding season of birds, if the parent bird catches the insect, it does not eat it immediately, but brings the insect back to the nest, and the behavior of the parent bird belongs to ( ).

a. Foraging behavior B. Defensive behavior c. Reproductive behavior D. Social behavior.

5. China's ancient book "Grass and Trees" says that "locusts are cyan, with long horns and long strands, and those who sing are also." ", indicating that animals can transmit information through ( ).

a.Sound bOdor cAction DLanguage.

6. The following animals that do not have social behavior are (

A, Ant B, Bee C, Baboon D, Mosquito.

3) Expand and improve Use line segments to connect the performance and behavior of the following animals.

Scarab feigned death when encountering the enemy defensive behavior.

Female cockworms feed chicks.

Hungry dogs fight for food.

Division of labor and cooperation among ants and community behavior.

Bees collect honey and squid inkjet.

Jiayan Nanfei a. Reproductive behavior.

Domestic pigeons lay eggs.