Review materials of biogeography examination in grade two of junior high school

review questions for grade biology examination

1. Fill in the blanks

1. In the structure of a flower, the structure related to the formation of fruit and seed is and two parts, in which the former includes and the latter consists of, and.

2. Now the population of the world has exceeded 1 million.

3,,, are the main organic substances that make up cells and can provide energy for life activities.

4. The digestive system is composed of and.

5. Of the total daily calories, breakfast is about, lunch is about, and dinner is about.

6. In the respiratory system,,,,, is the passage for gas to enter and leave the lungs, which is called respiratory tract.

7. Blood cells include,,. After the blood is stratified, it is red in the lower layer.

8. Hemoglobin is easy to react with oxygen in places with high oxygen content and easy to react with oxygen in places with low oxygen content. This characteristic of hemoglobin makes red blood cells have functions

9. When a person is life-threatening due to massive bleeding, he must be rescued by blood transfusion, and the principle should be input. People of any blood type can input a small amount of blood; People with AB blood type can not only input O blood, but also input less or less blood.

1. The brain is located inside, including,, and other main parts.

11. The adverse effects of human activities on the biosphere are:,,,,.

12. The development of some insects has gone through four stages: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _.

13. The spread of infectious diseases among people must have three basic links:,, and.

14. When traveling, you should prepare a small travel medicine box for emergency use. _ _ _ _ _ _ _ for people with carsickness, _ _ _ _ _ _ _ for people with heart disease, and _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

15. The units of biological classification are: _ _ _ _, _ _ _, _ _ _, _ _ _ _, _ _ _ _ _ _, _ _ _ _ _ _ _, _ _ _ _ _ _, where _ _ _ _ is the most basic unit of classification.

16. Compared with cat's teeth, rabbit's teeth are only _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

17. innate behavior is an animal's innate behavior, which is determined by _ _ _ _ _ in the animal's body; Learning behavior is the behavior obtained by _ _ _ _ _ _ _ _ _ and _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _.

18. Chloroplast of plant cells can transform _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

19. Biodiversity mainly includes diversity, diversity and diversity.

2. Plants mainly include four groups of seed plants. Among them, seed plants can be divided into two groups: and.

21. Among invertebrates, the group with the largest species, the largest number and the widest distribution is that it includes class animals, such as shrimp and crab, and class animals, such as centipede; Class animals, such as spiders; Class animals, such as ants, butterflies, locusts, etc.

22. Amphibian larvae live in the middle and breathe. Most adults live on land and breathe with

, so their skin plays an important role.

23. The characteristics of fish adapting to aquatic life are body shape, breathing, body surface covering, and being able to sense the direction of water flow on both sides of the body.

24. The main feature of fungi is that there are real ones in the cells, but there are none in the cells, so they can't carry out photosynthesis and generally live or live.

25. Generally, all ecosystems have four basic components, namely, components, participants, participants and participants.

Second, multiple-choice questions

1. The following are not life phenomena ()

A. Flowers bloom and fall B. The northern geese fly south C. Peacock "opens the screen" D. The tide rises and falls

2. Among the following items, Which can't be used as the basis for judging organisms ()

A. Being able to exercise and grow from small to large B. Being able to metabolize and discharge wastes

C. Being able to breathe and obtain nutrients D. Being able to grow and reproduce offspring

3, The following are not biological ()

A. Virus B. Mushroom C. Fish Fossil D. Pear Tree

4. Put the thin piece of paper with the English letter "B" under the microscope for observation. The image I saw is the English letter ()

a.bb.qc.d.d.p

5. The following operation process of making slide specimens, The correct order is ()

① Cover the cover glass ② Put the biomaterial into the water drop

③ Absorb excess water with absorbent paper ④ Drop a drop of clear water in the center of the glass slide

A.4213B.421C.1234D.31246. Scientists have analyzed that there were boundless forests and boundless grasslands in the former Loess Plateau. Nowadays, it has become a barren hill and a high loess slope. The main reasons are ()

A. The greenhouse effect of the earth B. The climate is dry C. Crustal movement

D. The ecological balance is destroyed due to human deforestation, overgrazing and land reclamation

7. As the saying goes, as you sow, you reap. From the perspective of cell structure, it mainly depends on () < P > A. Cell wall B. Cell membrane C. Cytoplasm D. Cell nucleus

8. Take a ripe tomato fruit and peel off a layer of skin on its surface after scalding it with boiling water. This layer of skin belongs to ()

A. Mechanical tissue B. Protective tissue C. Transport tissue D. Nutritional tissue

9. Under which of the following circumstances are seeds easier to preserve ()

A. Dry, low temperature B. Wet, low temperature C. Dry, high temperature D. Wet, High temperature

1. What is the direct cause of acid rain? ()

A. Natural phenomena B. Population explosion C. Domestic water

D. Industrial production and combustion produce a large amount of sulfur dioxide and hydroxide compounds

11. One creature has little urine output or even no perspiration. Then this creature may live in ()

A. Grassland B. Desert C. Warm D. Cold

12. The main difference between animals and plants in basic structure is that animal cells do not have ()

A. Cell walls, chromosomes, Vacuole B. Cell wall, chloroplast, vacuole < P > C. Chloroplast, chromosome, vacuole D. Cell wall, chloroplast, mitochondria

13. The following are not connective tissues ().

a. subcutaneous fat B. sebaceous glands C. blood D. dermis

14. sow rice into the ground. The reason why seedlings can't grow is ()

A. endosperm is destroyed B. embryo is destroyed C. seed coat is destroyed D. embryo is destroyed

15. After sowing in early spring, use the method of "plastic film mulching" to promote early seedling emergence. Its principle is ()

A. Moisturizing and heat preservation, which is beneficial to germination B. Seed germination needs to be protected from light

C. Preventing birds from eating seeds D. Preventing sandstorms

16. The most important part of roots to absorb water and inorganic salts is ().

a. root cap B. mature area C. elongation area D. meristem area

17. The structures that develop into pericarp and fruit are () respectively.

A. Ovules and seeds B. Seeds and ovary walls C. Ovary walls and ovaries D. Ovaries and ovaries

18. When raising goldfish, people often put some fresh aquatic plants in the fish tank. Its main purpose is ()

A. Aquatic plants can be eaten by fish B. Aquatic plants can evolve water quality

C. Aquatic plants can release oxygen through photosynthesis. For fish to live D. Aquatic plants can increase the beauty of the aquarium

19. The part of the plant that breathes is () < P > A. Only in seeds B. Only in leaves C. Only in roots D. In all living cells of the plant

2, Green food refers to ()

A. Green nutritious food B. Nutritional food with chlorophyll

C. Food with high economic added value D. Safe and pollution-free nutritious food

21, The gateway of gas exchange between plant leaves and the external environment is ()

a. stomata b. cuticle c. epidermis d. guard cells

22, The place where eggs in the human body complete fertilization is () < P > A. uterus B. ovary C. fallopian tube D. vagina

23. Human development begins with a cell. This cell is ()

A, germ cell B, sperm C, egg cell D, fertilized egg

24. The first sign of puberty is ().

A. Increased vital capacity B. Weight gain C. Sudden increase in height D. Menstruation or nocturnal emission

25. The main organs in the human body that digest food and absorb nutrients are ()

A. Oral cavity B. Stomach C. Small intestine D. Large intestine

26. Children suffering from rickets are mainly due to the lack of () < P > A. Inorganic salts containing calcium B. Inorganic salts containing phosphorus C. Inorganic salts containing iron D. Inorganic salts containing zinc

27, The substance with the highest content in human cells is () < P > A. Water B. Sugar C. protein D. Fat

28. People with frequent bleeding gums may lack vitamins () < P > A. Vitamin A B. Vitamin B. Vitamin C.