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Biology

Biology
Lederberg and Tatum demonstrated conjugation in the bacteria

1944
1947
1946
1945

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Biology
Which of the following serves as a nutritive tissue for the growing embryo?

Ovary
Ovule
Endosperm
Zygote

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Biology
It is commonly found in the bottom tidal pools?

Ulva
Stiogeoclonium
Chlamydomonas
Spirogyra

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Biology
Sweating is important

To open the pore of skin
To excret the smell of body
To control the temperature of body
For improvement of normal health

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Biology
Every ecosystem must have

Both A & B
Heterotrophs
Autotrophs
Photosynthesizers

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Biology
The principle of dominance states that

All alleles are dominant
Some alleles are dominant, while others are recessive
All alleles are recessive
Alleles are neither dominant nor recessive

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