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Nonamiya [84]
3 years ago
14

Tính trạng là gì sinh học 9

Biology
1 answer:
stepan [7]3 years ago
6 0

Answer:Tính trạng kiểu hình, hay tính trạng là một biến thể đặc trưng về kiểu hình của một sinh vật có thể do di truyền, do môi trường hoặc là sự kết hợp của cả hai yếu tố trên. Ví dụ, màu mắt là một đặc trưng, màu mắt xanh, nâu hay hạt dẻ là các tính trạng

Explanation:

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Tissue working together makes an-<br> A. Organism<br><br> B. Organ
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Answer:

<u>B. Organ</u>

Explanation:

Atom → Cell → Tissue → Organ → Organ System → Organism

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The Punnett square shown presents a cross between two piranhas. Both parents have large teeth.
Llana [10]

Answer:

The correct answer would be C)  75% large-toothed and 25% small-toothed.

It can be explained with the help of the law of dominance which states that the dominant allele expresses itself completely over the recessive allele in the heterozygous condition.

So, the genotype TT, as well as Tt, will result in the production of dominant trait or character in the offspring.

Thus, three (1 TT and 2 Tt) out of four offspring would have large teeth and only one offspring (tt) would have small teeth.

Hence, we can conclude that 75% of the offspring will have large teeth and only 25% will have small teeth.

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Which of these scientists did not make a major contribution to cell theory?
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what is the length of time called that an organism is expected to live? a. life span            b. homeostasis c. stimulus      
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4 years ago
Label the features of the stomach and nearby regions in this frontal section of a cadaver (anterior view)
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1- Pyloric sphincter
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3- Bile duct
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The <span>esophagus(5) connects to the stomach.</span>
<span> The food passes,from the pharynx, to the esophagus, to the stomach. This process is aided by peristaltic movements done by esophagus muscles.
This organ contains two sphincters:</span><span>the upper and the lower esophageal sphincter.
 
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</span>2--The fundus(7)- It's formed by the upper curvature of the stomach.

3- the body(9)- is the main part; and the biggest

4-The pylorus/</span><span> Pyloric part (10) - is the lower region. This part is connected to the small intestine, the duodenum. In this region there is a </span>
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In the first part of the duodenum there is a connection with a duct that comes from the pancreas -4-</span>Pancreatic duct .
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