Answer:
450
Explanation:
subtract 25 divide by 2 add to 400
The oxygen molecules moves through the nostrils, pharynx, trachea, bronchus, smaller and smaller branches of the bronchial tree, and then into the alveolus.
Answer:
mrs weasley's genotype is AA while Mr Weasley's genotype is AB
Explanation:
since the mating of Mr and Mrs Weasley results into = AA, AB, AA and AB
Mrs Weasley has homozygous type A blood while her husband Mr Weasley has heterozygous type A blood as well