In North America, how does beta diversity of plants (from east to west) change as one moves from south to north?
A) It increases.
B) It remains constant.
C) It decreases.
D) It exhibits no consistent pattern.
Ans: C) It decreases.
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The purpose of the Calvin cycle is to ____
a. convert inorganic carbon into a useable form of carbon b. recover electrons lost when water was split c. capture photons of light to harvest solar energy d. counteract increasing atmospheric CO2 concentrations (global warming) e. generate the O2 gas required for cellular respiration
When an atom becomes an ion, which property changes the most?
a. atomic number b. atomic mass c. charge d. half-life
When a haploid "plus" mating type fungal cell fuses with a haploid "minus" mating type cell, this can lead to a single cell containing two haploid nuclei called a
a. spore. b. dikaryon. c. fruiting body. d. haploid-diploid. e. fusion product.
How do deletions and translocations in chromosomes often occur?
A) during meiosis I, sister chromatid exchange leads to abnormalities B) chromosomes will break and the sticky ends will rejoin C) chromosomes will fuse telomere to telomere D) when cells undergo meiosis II, chromosomes naturally break when sister chromatids are being pulled apart E) colchicine treatment causes chromosomal rearrangements