Why do male and female parrots determine their sex by means of genetic testing?

Updated on science 2024-04-30
21 answers
  1. Anonymous users2024-02-08

    Because you are no different from male to female.

  2. Anonymous users2024-02-07

    Because you can't tell the male from the outside.

  3. Anonymous users2024-02-06

    Because from his appearance and voice, it is impossible to tell whether he is male or female.

  4. Anonymous users2024-02-05

    Because it is impossible to judge from the color of the feathers and the sound.

  5. Anonymous users2024-02-04

    Because their appearance is exactly the same, there is no difference.

  6. Anonymous users2024-02-03

    No difference can be seen from the outside.

  7. Anonymous users2024-02-02

    Because you can't tell by the appearance alone.

  8. Anonymous users2024-02-01

    Because it is impossible to distinguish male and female from their appearance alone.

  9. Anonymous users2024-01-31

    Because ordinary people can't see it just by looking at it.

  10. Anonymous users2024-01-30

    Because they all look the same.

  11. Anonymous users2024-01-29

    Hehe, I don't study it, write the numbers on the playing cards.

    Feel what is what is next time you choose to try.

    If you have any good thoughts, I'll post them later.

  12. Anonymous users2024-01-28

    How to set the password of the mobile phone program: 1. ColorOS version, Settings--Security--Apply encryption, set a password, and add applications; Note: If you enter the application encryption - Settings in the upper right corner - open the application for a short period of exit without verification, the encrypted application exits and opens it again in front of the lock screen after exiting, and there is no need to verify the application encryption password.

    2. ColorOS version, Phone Manager - Permission Privacy - Application Encryption, set a password, add apps; 3. ColorOS version, Security Center--Permission Privacy--Program Encryption; 4. ColorOS version, security service - program encryption, add the program after setting the password. How to use the filevault: 1. ColorOS 6 version:

    Set up > Secure > Private Vault or access Private Vault with a desktop shortcut. After passing the lock screen password, fingerprint or facial recognition verification, you can view the encrypted files; 2. Versions and above: File Management > File Vault After setting a password according to the prompts, you can enter the file vault; 3. ColorOS version system:

    File Management > Menu Keys > FileVault After you are more prompted to set a password, click Add File to view.

  13. Anonymous users2024-01-27

    Because you can be opportunistic and get something for nothing!

  14. Anonymous users2024-01-26

    Ticket code G refers to Instant Open Scratch-off Tickets.

    J refers to an instant open lottery.

    c. Traditional fixed prize lottery.

    n Instant double-open lottery tickets.

    w Instant type double open lottery ticket.

    DN Instant Pocket Ticket.

  15. Anonymous users2024-01-25

    General: Sports Lottery Welfare Lottery.

    Sports Lottery: Football Lottery, Super Lotto, Permutation.

    3. Arrangement. Five, seven star color, 22 selection 7, top scratch.

    Fucai: two-color ball, 3

    d, Seven Lottery, Scratch, East 6+1

    The general characteristics of the lottery are all listed in various forms.

  16. Anonymous users2024-01-24

    That is, choose 7 numbers from 1-29 out of a total of 29 numbers to bet.

    8, Oriental 6+1

    Oriental 6+1 lottery betting area is divided into the basic number area and the zodiac code area. Oriental 6+1 bet number consists of a 6-digit natural number of the basic number and 1 zodiac code arrangement.

    The basic number is selected from the six-digit natural number 000000-999999, and the zodiac code is selected from the twelve zodiac signs, which are rats, oxes, tigers, rabbits, dragons, snakes, horses, sheep, monkeys, chickens, dogs, and pigs.

    9, 5 out of 15 in East China

    5 out of 15 is a combination lotto game, that is, choose 5 numbers from 01-15 numbers to combine them into one bet number.

    10. New 3D

    The new 3D belongs to the category of digital lottery, which is uniformly organized and issued by the China Welfare Lottery Issuance Management Center and sold nationwide.

  17. Anonymous users2024-01-23

    Lotteries mainly include welfare lotteries. Sports lotteries and football lotteries. And the first two are the most popular.

    China's Welfare Lottery: Double Color Ball, Seven Lottery, 3D, Scratch Lottery, 22 Pick 5, each note is 2 yuan China's Sports Lottery: Super Lotto, Seven Star Lottery, Rank 3, Rank Pick 7, Pan Pearl River Delta, each note is 2 yuan China's football lottery currently has two categories:

    Win and lose: One is 14 games.

    The second is to choose any 9 games.

    Goal lottery: First, 4 goals scored; The second is 6 and a half full games.

  18. Anonymous users2024-01-22

    China Sports Lottery:

    Super Lotto, Seven Star Lotto, Rank Three, Rank Five, Football Lottery (14 wins, four goals, six and a half games), Blue Ball, 5 out of 22, 7 out of 29.

    China Welfare Lottery:

    Double color ball, 3D, seven music.

  19. Anonymous users2024-01-21

    Welfare Lottery: Double Color Ball, 3D, Seven Lotto, Sports Lottery: Big Lotto, Seven Star Lottery, 5 out of 22, Permutation.

    Three, rank five, as well as football lottery (wins, goals, half time) the above are all national lotteries, in addition to one or several provinces issued by the provincial (local) lottery.

    Generally, the lottery tickets bought in this province can be redeemed throughout the province, and it may not be possible to redeem the prize in other provinces (the lottery printing format is different).

  20. Anonymous users2024-01-20

    The invoice obtained from the seller for the building materials required for the construction of the construction unit is the invoice for the building materials. For example: steel, cement, concrete, machine-made bricks, tiles, marble, flint stone, cement prefabricated parts, wires and cables, sand, soil, stone, etc., all belong to building materials.

    The purchase of these invoices due to the construction of the building is the invoice for building materials. Building materials are issued by units and individuals who sell corresponding building materials. Special VAT invoices and general VAT invoices can be issued.

  21. Anonymous users2024-01-19

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