Organization, PH and variables

What kind of macromolecule is this pictured?

• Carbohydrate

• Protein

• Lipid

• Nucleic Acid

Which of the branches of the lipid molecule in considered saturated?

• The top 2 branches

• The 3rd branch at the bottom

Acidic solutions have a PH below 7 and have LESS H+ ions than basic solutions.

• True

• False

If I add a base to an aqueous solution, the result will be that the final solution (with the base added) will have

• Lower H+ concentration than the original solution

• Greater H+ concentration than the original solution

• The same H+ concentration as the original solution

The lipid pictured is a...

• Cis unsaturated lipid (fat)

• Saturated fat

• Trans unsaturated fat

Which answer below shows the biological units of organization from simplest to most complex (small to large)?

• Atom, molecule, population, cell, tissue, community, organ, organ system, organism, ecosystem

• Organism, population, community, ecosystem, organ system, tissue, organ, cell, molecule, atom

• Atom, molecule, cell, tissue, organ, organ system, organism, population, community, ecosystem

If I am tall then I will have a longer stride (step) because taller individuals have longer legs and use fewer steps to walk the same distance as a shorter individual.

What is the independent variable in this experiment?

• Height

• Stride

• Leg Length