Sexual reproduction involves the production of _________ gametes when diploid cells undergo a cell division called _________.
Fill in the blank(s) with the appropriate word(s).
Answer: Haploid, meiosis
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Hydroponic culture is the process of ____
a. growing plants in pure water mixed with carefully measured amounts of specific minerals b. irrigation of dry areas to improve mineral absorption by plants c. growing plants in ponds and lakes to improve their access to water, allowing the plants to place more resources into the shoot system d. irrigation of dry areas to prevent crop plants from wilting e. growing plants with specific hydrocarbons added to the soil to test the effect on plant growth
Plants having the ability to take up organic nitrogen are most likely to be found in the ____
a. arctic tundra b. salt marsh c. tropical forest d. grassland e. temperate forest
Alzheimer's disease is a disorder of memory impairment and Parkinson's disease affects physical activity, but both result from a lack of a particular neurotransmitter.
a. true b. false
Large ears is a rare trait in a mainland population of mice. A few female mice homozygous for very large ears arrive at an island that already contains mice after sneaking onto a boat. This will lead to a population with a higher incidence of big ears than the mainland population because of ________
A. a bottleneck effect. B. natural selection. C. genetic drift. D. increased mutation. E. gene flow.