Q: Scientists often classify or organize different objects based on their what? Choices: - experimental properties - behavioral traits - independent variables - physical properties A:
physical properties

Q: What is the name of the supportive structed that helps move a worm's muscles? Choices: - spongin - exoskeleton - pollenation - hydroskeleton A:
hydroskeleton

Q: Q: What is formed when a monomer of glucose and a monomer of fructose are joined in a dehydration reaction to form a glycosidic bond? Choices: - fructose - sulfate - chloride - sucrose A:
A: sucrose

Question: Q: Bond lengths are intermediate between covalent single bonds and what? Choices: - trivalent bonds - wavefunction double bonds - gravitational double bonds - covalent double bonds A:
Answer: covalent double bonds

*Question*
Q: The extracellular matrix of most animal cells contains abundant amounts of what protein, which helps hold things together? Choices: - actin - elastin - keratin - collagen A:
**Answer**
collagen

Q: Q: Bubbles in bread dough are created by what gas produced during alcoholic fermentation? Choices: - acid dioxide - combustion dioxide - yeast dioxide - carbon dioxide A:
A: carbon dioxide