Why might spinach be more nutritious than iceberg lettuce?
What will be an ideal response?
Spinach contains many vitamins and minerals.
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Which of the following is a possible use for gene cloning?
A. Cloned genes can be introduced into bacteria or livestock to make pharmaceutical products such as insulin. B. Cloned genes can be introduced into plants and animals to alter their traits. C. Cloned genes can be used to treat diseases. D. Large amounts of protein can be produced to study structure and function. E. All of the choices are correct.
At a certain point in the flowering process, shoots become committed to making a flower. This is called
A. apomixis. B. bilateralism. C. phase change. D. competence. E. floral determination.
Natural selection ________.
A. prepares organisms for future changes in the environment B. results in evolutionary adaptation C. is a very rare phenomenon D. does not affect allelic frequencies
Hydrophobic molecules tend to be ________ by water
A) absorbed B) mixed C) attracted D) repelled