Gametophytes are diploid; sporophytes are haploid.
a. true
b. false
a. true
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If the Earth were to reorient such that the North Pole always received direct sunlight (always faced the Sun), how would that change Earth's climate?
A) The equators would not change in climate. B) The South Pole would get colder. C) The equators would get warmer. D) The North Pole would get more wind.
Hydrolytic enzymes function in the
A) initial degradation of nutrients. B) transport of substrates within the cell. C) chemotactic response, particularly in gram-negative Bacteria. D) regeneration of the periplasm.
Which factor is responsible for many emerging pathogens in humans?
A) expanded host or tissue range of the pathogen B) longer life spans resulting in a larger elderly population C) increased use of antibiotics in the past half-century D) improved sanitation and hygiene practices E) availability of vaccines
The walls of veins are thinner, so they cannot expand as greatly as arteries can.
Answer the following statement true (T) or false (F)