Which includes the other four?
a. atoms
b. molecules
c. electrons
d. elements
e. protons
Answer: b
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The symmetrical pattern of yolk distribution in a sea urchin represents the beginnings of radial
symmetry.
Indicate whether the statement is true or false.Ferns reproduce sexually by producing many
A. seeds. B. spores. C. flowers. D. cones.
Ouabain is a chemical used on poison arrows in Africa. It works by inhibiting the sodium-potassium pump. What effect does this chemical have on an action potential?
A) It causes the release of a neurotransmitter that causes an action potential. B) It prevents the stimulation of an action potential by removing sodium from the cell. C) It immediately causes an action potential to be generated. D) There is no direct effect because the pump is used to maintain ion distributions, not to cause an action potential.
If the women of Transylpolkonia traditionally delay having their first child until they are in their late 30s but the women of Chaldokia normally start their families in their teens, which nation will be more likely to have an increasing population?
What will be an ideal response?