There are consistent patterns in the distribution and abundance of dominant plant life-forms across the biosphere because these life-forms share ________ to the selection pressures of climate and the physical environment
Fill in the blank(s) with correct word
adaptations
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A couple wants to start a family, but they are concerned that their child might have cystic fibrosis. After taking a
family history, you determine that while neither of them have the disease, the woman had a sister with cystic fibrosis (with unaffected parents), and the man's father also had cystic fibrosis. What do you tell them?
What will be an ideal response?In individuals with cystic fibrosis:a
the mucus enhances the action of the cilia that line the bronchi. b. the mucus prevents the growth of dangerous bacteria in the respiratory system. c. the mucus in the respiratory system is thinner than in unaffected individuals. d. abnormal mucous secretions occur throughout the body systems. e. abnormal mucous secretions inhibit infections by bacteria.
What is a genome?
A) the complete complement of an organism's genes B) a specific sequence of polypeptides within each cell C) a specialized polymer of four different kinds of monomers D) a specific segment of DNA that is found within a prokaryotic chromosome E) an ordered display of chromosomes arranged from largest to smallest
A gene operon consists of
A) a transcribed gene only. B) a promoter only. C) a regulatory gene only. D) transcribed genes, an operator, and a promoter.