Biology
Which of the following is not a function of saliva?

Helps clean the mouth
Moistens food and helps stick it together to make it easier to swallow
Contains fluoride to harden the tooth enamel
Begins the chemical breakdown of starches

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Biology
In test tube baby

Fertilization takes place in uterus while development takes place in test tube
Development of ova take place in test tube without fertilization
Fertilization of ova takes place in test tube which development of embryo occur in uterus
Fertilization of ova and development takes place in test tube

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Biology
The main function of the inner bark of a woody plant is to

Transport minerals and water from the roots to the leaves
Protect the plant from herbivorous animals
Act as a membrane impermeable to water and gas
Transport food from the leaves to the other parts of the plant

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