Which of the following is true of innate behaviors? Innate behaviors _____
A) are only weakly influenced by genes
B) occur in invertebrates and some vertebrates but not mammals
C) are limited to invertebrate animals
D) are expressed in most individuals in a population
Answer: D
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The nucleic acids carried by viruses usually consist of
A. DNA. B. RNA. C. either DNA or RNA. D. both DNA and RNA simultaneously.
Which common crop may contain traces of hormone-like substances that may affect human health?
A. corn B. wheat C. peanuts D. soybean E. wine grapes
Meiosis II is similar to mitosis because _____
a. both result in the production of diploid daughter cells b. both result in the production of haploid daughter cells c. DNA replication immediately precedes both meiosis II and mitosis d. homologous chromosomes are separated in meiosis II and mitosis e. sister chromatids are separated in meiosis II and mitosis
Which of these groups is characterized by a lack of symmetry (neither radial nor bilateral)?
A) Cnidarians B) Chordates C) Arthropods D) Flatworms E) Sponges