"General Review of the First Volume of Biology for Eighth Grade" PPT Courseware 4

Description

"General Review of the First Volume of Biology for Eighth Grade" PPT Courseware 4

1. Multiple choice questions (61 points)

1. Among the units of biological classification, the most basic unit is ( )

A. Door B. Gang

C. Branch D. Species

2. The body wall of earthworms is always moist, which is beneficial to earthworms ( )

A. Stay hydrated B. Exercise

C. Reproduction D. Respiration

3. "The body is divided into a head, chest and abdomen, two pairs of wings and three pairs of legs, two pairs of sensory whiskers on the head, and the inside is flesh and the outside is bone." This jingle describes the main characteristics of which type of creature ( )

A. Arthropods

B. Insects

C. Centipede

D. Spider

4. Which of the following human activities will not damage the water environment ( )

A. Humans stock mixed fish species in waters

B. Discharge industrial sewage

C. Discard domestic garbage into the water at will

D. Crude oil leaks in the ocean

5. How do the biceps and triceps change when the elbow is extended ( )

A. All shrink

B. Biceps relax and triceps contract

C. All are diastolic

D. The biceps brachii contracts and the triceps brachii relaxes.

Volume II Non-Multiple Choice Questions

2. Recognize pictures and answer questions:

1. The picture on the right is a model diagram of a joint. Look at the picture and answer:

(1) Write the name of each part:

1:____________

2:____________

3:____________

4:____________

5：____________

(2) What reduces friction between bones during exercise is _______

If you accidentally exert too much force during exercise, it will often cause the "1" to come out of the "4", which is called ________.

2. The picture below is a schematic diagram of the cooperation of muscles when the human body bends the elbow. Please answer according to the picture:

(1) a in the picture is _________. When a person bends the elbow, the muscle group dominated by it is in the _________ state, while the muscle group dominated by b__________ is in the _________ state.

(2) When a person extends his elbow, a is in the _______ state and b is in the _______ state.

(3) When the arms hang down naturally, a__________, b__________.

(4) When lifting heavy objects vertically with both arms, a__________, b__________.

3. Data analysis questions:

4. Carefully observe the morphological structure of the group of birds in the picture, please find effective information, and then analyze the reasons why the birds are suitable for flying. (Say at least 5 or more)

1) The bird’s body is streamlined, which can reduce resistance during flight;

2) The body surface is covered with feathers, and the forelimbs become wings for flying;

3) The sternum has a keel protrusion, the chest muscles are well developed, and it has strong flying ability;

4) Long bones are hollow; light but strong

5) Digestion, absorption, and excretion of feces are rapid;

6) There are unique air bags to assist the lungs in breathing;

7) Body temperature is high and constant.

8) The circulation system is perfect and has a strong function of transporting nutrients and oxygen.

4. Experimental research questions:

9. Students in an experimental group want to study "the role of fish fins in swimming". Please help them improve their design ideas:

1) Ask a question:_______________________________

2) Make assumptions:_________________________

1) B, A. Bacteria or not.

2) Bacteria require water to grow and reproduce.

3) No. Different leaves have different bacterial growth and reproduction conditions, and the decomposition effect of bacteria cannot be scientifically proven.

Keywords: Eighth grade biology first volume general review teaching courseware, People's Education Edition eighth grade biology first volume PPT courseware download, eighth grade biology slide courseware download, eighth grade biology first volume general review PPT courseware download, .PPT format;

For more information about the PPT courseware "Eighth Grade Biology Volume 1 Review", please click the "Eighth Grade Biology Volume 1 Review PPT" tab.

"General Review of the First Volume of Biology for Eighth Grade" PPT Courseware 5:

"Eighth Grade Biology Volume 1 General Review" PPT courseware 5 Chapter 1 The main groups of animals Review goals: 1. Review the main characteristics of annelids, arthropods, fish, birds, and mammals. 2. Further clarify the biological perspective on the compatibility of structure and function.

"General Review of the First Volume of Biology for Eighth Grade" PPT courseware 3:

"Eighth Grade Biology Volume 1 Review" PPT Courseware 3 1. Which of the following animals living in water are invertebrates? A. Turtles, squids B. jellyfish, frogs C. spider crabs, octopuses D. carp, River mussel 2. The structure of crucian carp to sense the direction of water flow..

"General Review of the First Volume of Biology for Eighth Grade" PPT Courseware 2:

"Eighth Grade Biology Volume 1 General Review" PPT Courseware 2 When a fish swims, what part does it rely on to generate forward momentum? Which fins do you rely on to maintain balance? Which fins do you rely on to keep moving forward? When a fish swims, it mainly relies on the left and right swings of its trunk and tail to create water flow.

File Info

Update Time: 2024-09-30

This template belongs to biology courseware People's Education Edition Biology for Grade 8, Volume 1 industry PPT template

Preview