Symmetry Reading Answers, Symmetry Reading Comprehension Questions

1 Asymmetry in the biological world is absolute, while symmetry is relative.

2a Wrong. b right.

c Pair. d right.

The 3 columns of data examples show more accurately and concretely that asymmetry in the biological world is absolute, while symmetry is relative.

4 There are 4 kinds: 1) Spherical symmetry.

2) Planar symmetry.

3) Radiative symmetry.

4) Left and right symmetry.

5. Caused by the asymmetry of the protoplasm within the cell.

6 Can't be deleted Because the deletion of words will affect the meaning of the original text, adding "at least" to express the meaning is more accurate, with this word can better reflect the accuracy of the expository text.

Hey, I've typed a lot of words, please help, if it's a person, click "power" If it's not a person, click "don't help" to help.

1) Spherical symmetry.

2) Planar symmetry.

3) Radiative symmetry.

4) Left and right symmetry.

A is relative, and the question is a bit problematic.

B false. c Pair.

d right. 3。caused by the asymmetry of the protoplasm in the cell.

4. No, it will affect the meaning of the original text after deletion.

The left ear is slightly larger than the right ear, the left eye is slightly larger for 56 people, and the right half of the face is larger for 59 people. The torso and limbs are also not completely symmetrical, and the left shoulder is often higher. People with '75 have a longer upper limb on the right side than on the left.

Make the expression clearer and more symmetrical.

Read the expository article "Symmetry" below and complete the next 2425 questions. (4 points in total).

Symmetry is a common and wonderful and interesting phenomenon in nature. The stars and planets inlaid in the sky are spherical to small and delicate snowflakes, and the delicate and delicate honeycombs are symmetrical; Most of the flowers are radially symmetrical; The leaves with ** leaf veins are symmetrical, and there is no asymmetry in the facial features and limbs of people, birds, beasts, insects and fish.

Symmetry can give people a neat, quiet and steady beauty, but it also causes less change and is not free, which restricts agility and leap. Cao Xueqin was the first person in ancient times to appear restless about symmetry. For example, the Fang official in his pen, even wearing earrings is big and small, which seems to be staggered and unique.

In fact, as an ancient philosopher said, no two things in the world are exactly the same. A closer look at the fine structure of the midribbed leaves shows that the number and distribution of veins on both sides, as well as the number and distribution of leaf margin notches or serrations, are different. The vast majority of people also have asymmetrical facial development, with 66 people having a slightly larger left ear, 56 having a slightly larger left eye, and 59 having a larger right half of the face.

The human trunk and limbs are also not completely symmetrical, and the left side is often higher. People with '75 have a longer upper limb on the right side than on the left. The palm prints of people's hands are not only different in veins, but also in rough mosquitoes.

It can be said that in the biological world. Asymmetry is absolute, whereas symmetry is relative. Experimental studies have shown that this is due to the asymmetry of the protoplasm in the cell.

From the molecular structure of proteins and other substances in living organisms, it can be clearly seen that protoplasm generally has an asymmetrical structural form. Studies have found that asymmetric protoplasm is metabolized at least 3 times faster than chemicals with equal left and right structures. It can be seen that asymmetry is of great significance to the evolution of life, and the development of nature is a process of decreasing symmetry.

The chain is symmetrical, but not completely symmetrical, this is the magnificent and colorful nature.

24 What are the root causes of asymmetry in the biological world? In the words of the text. (2 points).

Answer: 25 What is the difference between using and not using at least in the sentence at least 3 times faster than chemicals with equal structure on the left and right? (3 points).

24. KLM transforms gutter oil into aviation fuel.

25. Give examples. The example of 2009 was used to illustrate the technical feasibility of flying with bio-kerosene.

2. c

1. a2."Caused by the asymmetry of the protoplasm within the cell".

5.Not using "at least" means just 3 times; "At least" means equal to or greater than 3 times, and never less than 3 times. So it's more accurate to use "at least" and can't delete it.

Next time, it will be better to be clearer o(o).

Spherical symmetry.

2) Planar symmetry.

3) Radiative symmetry.

4) Left and right symmetry.

It's relative, and the question is a bit problematic.

B is wrong and C is true. d to 3. caused by the asymmetry of the protoplasm in the cell.

4. No, it will affect the meaning of the original text after deletion.

The left ear is slightly larger than the right ear, the left eye is slightly larger for 56 people, and the right half of the face is larger for 59 people. The torso and limbs are also not completely symmetrical, and the left shoulder is often higher. People with '75 have a longer upper limb on the right side than on the left.

Make the expression clearer and more symmetrical.

2."Caused by the asymmetry of the protoplasm within the cell".

5.Not using "at least" means just 3 times; "At least" means equal to or greater than 3 times, and never less than 3 times. So it's more accurate to use "at least" and can't delete it.

Next time, it will be better to be clearer o(o).