Cramps, dizziness, nausea and lack of sweat production are all symptoms of impending heat illness.
a. true
b. false
a. true
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The distinction between karyogamy and plasmogamy is:
A. Karyogamy is the fusion of nuclei and plasmogamy is the fusion of the cytoplasm. B. Karyogamy is the fusion of cytoplasm and plasmogamy is the fusion of nuclei. C. Karyogamy is the fusion of dikaryotic cells and plasmogamy is the fusion of gametes. D. Karyogamy is the fusion of hyphae and plasmogamy is the fusion of mycelia. E. Karyogamy is the fusion of nuclei and plasmogamy is the attack of blood plasma by fungal pathogens.
Answer the following statements true (T) or false (F)
1.A dinoflagellate has both a transverse flagellum and longitudinal flagellum. 2.Golden algae, diatoms, and brown algae contain yellowish pigments. 3.Alternation of generations means having alternating, multicelled haploid and diploid phases in a life cycle. 4.All protists are single-celled. 5.Protists can be heterotrophs.
In pea plants, the allele for purple flowers (P) is dominant over the allele for white flowers (p). A pea plant heterozygous for the flower color trait has ____ flowers.
A) purple B) white C) pink D) purple and white E) purple and pink
Sea turtle populations are threatened with extinction by natural dangers, and humans increase that threat because sea turtles
A) are spreading into coral reefs. B) are difficult prey for human poachers to capture. C) are caught in nets along with other species being fished. D) are overexploited as pets. E) are overexploited for research and development.