Fifth Grade Science Volume 1, Textbook Edition
Science Edition for Sixth Grade Science Volume 2
Science Edition for Sixth Grade Science Volume 1
Third Grade Science Volume 2, Textbook Edition
Third Grade Science Volume 1, Textbook Edition
Fourth Grade Science Volume 2, Textbook Edition
Fourth Grade Science Volume 1, Textbook Edition
Fourth-grade science volume 2 of the E-education edition
Qingdao Edition Fourth Grade Science Volume 2
Hunan Education Edition Fourth Grade Science Volume 1
E-education edition fifth grade science volume 1
E-education edition fifth grade science volume 2
E-education edition sixth grade science volume 1
Fifth Grade Science Volume 2, Textbook Edition
Zhejiang Education Edition Seventh Grade Science Volume 2
Qingdao Edition Fourth Grade Science Volume 1
Category | Format | Size |
---|---|---|
Qingdao Edition Fifth Grade Science Volume 2 | pptx | 6 MB |
Description
"Who Am I Like" PPT
Part One: Discussion of Problems
Discussion: Factors that determine appearance
food nutrition
genetics
lifestyle
Why do some twins look so similar while others don't?
Twins are divided into two types: fraternal twins and monozygotic twins.
Fraternal twins: Two eggs are fertilized at the same time, resulting in two different fertilized eggs, forming two new individuals. Due to the greater difference in genetic material, there will be obvious differences in gender and appearance. One example is the twins of dragon and phoenix.
Monozygotic twins: One fertilized egg splits in two to form two embryos. Since they come from the same fertilized egg and receive exactly the same genes and other genetic material, the gender, appearance, and personality of the two new individuals are almost the same, and sometimes even their own parents have difficulty telling them apart.
Genes refer to the genetic material that carries information about the physical characteristics of parents and controls the performance of an individual's traits, including gender, personality, appearance, etc.
Genes exist in the reproductive cells of parents. Even if they are the same person, each reproductive cell has some differences.
Part Two: Extracurricular Development
Darwin once said that there are no two identical leaves in this world.
Do you agree with this statement? Are you willing to verify it in life?
Keywords: Qingdao version fifth grade science PPT courseware for the second volume free download, who am I like PPT download, .PPT format;
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"Who Am I Like" PPT courseware:
"Who Am I Like" PPT Courseware Part One: Heredity and Genetic Phenomenon Heredity: The phenomenon in which organisms pass their morphological characteristics or psychological characteristics to their offspring. Interesting Genetic Phenomenon As the saying goes: If you sow melons, you will reap melons; if you sow beans, you will reap beans. Dragon begets dragon, phoenix begets phoenix. Heredity is...
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Update Time: 2024-10-25
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