Answer the following question given this paragraph: Q: When animals get rid of their gaseous waste, what is exhaled through their mouth and nose? Choices: - oxygen - carbon monoxide - hydrogen - carbon dioxide A:
carbon dioxide
Answer the following question given this paragraph: Microevolution is the process by which organisms change in small ways over time. Q: What is the process by which organisms change in small ways over time? Choices: - spontaneous mutation - natural selection - adaptation - microevolution A:
microevolution
Q: Answer the following question given this paragraph: Hydrogen chloride contains one atom of hydrogen and one atom of chlorine. Because the. Q: Hydrogen chloride contains one atom of hydrogen and one atom of what? Choices: - magnesium - calcium - nitrogen - chlorine A:
A: chlorine
Question: Answer the following question given this paragraph: Hydrozoa includes nearly 3,500 species, most of which are marine. Most species in this class have both polyp and medusa forms in their life cycle. Many hydrozoans form colonies composed of branches of specialized polyps that share a gastrovascular cavity. Colonies may also be free-floating and contain both medusa and polyp individuals in the colony, as in the Portuguese Man O'War (Physalia) or By-the-Wind Sailor (Velella). Other species are solitary polyps or solitary medusae. The characteristic shared by all of these species is that their gonads are derived from epidermal tissue, whereas in all other cnidarians, they are derived from gastrodermal tissue (Figure 15.14ab). "The Hydrozoa Directory," Peter Schuchert, Museum Geneve, last updated November 2012, http://www. ville-ge. ch/mhng/hydrozoa/hydrozoadirectory. Q: Most hydrozoa have both polyp and what forms in their life cycle? Choices: - hydra - globular - polypoid - medusa A:
Answer: medusa
*Question*
Answer the following question given this paragraph: Nucleic acids consist of chains of small molecules called nucleotides, which are held together by covalent bonds. Q: What holds together the small molecules called nucleotides which make up nucleic acids? Choices: - permanent bonds - dissonance bonds - curvature bonds - covalent bonds A:
**Answer**
covalent bonds
Answer the following question given this paragraph: Q: But a point mutation can also change a codon for an amino acid into a what? Choices: - axon - exon - stop mutation - stop codon A:
stop codon