Which of the Following Does NOT Occur When Blood Flow

question 68

Multiple Choice

Which of the following does NOT occur when blood flow to an area of the lungs is reduced but the area receives normal air flow

• A)The concentration of CO₂ in this area decreases.
• B)The change in CO₂ concentration causes the smooth muscles of the local airways to relax.
• C)The change in CO₂ concentration leads to increased resistance of local airways.
• D)The change in O₂ concentration leads to dilation of local blood vessels.

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Definitions:

Autopolyploids

Individuals or species with more than two chromosome sets, all originating from a single species, leading to increased size and vigour in some plants.

Polyploids

Organisms or cells having more than two paired sets of chromosomes, often resulting in increased size or other changes.

Hybridization

(1) Interbreeding between members of two different taxa. (2) Interbreeding between genetically dissimilar parents. (3) In molecular biology, complementary base pairing between nucleic acid (DNA or RNA) strands from different sources.

Plant Evolution

The study of the processes that led to the diversity of the plant kingdom, from the earliest forms of life to the vast array of plants we see today.