Q: Q: Branching food chains and complex trophic interactions form what? Choices: - food fields - food maps - food trees - food webs A:
A: food webs

Q: Q: The minimum amount necessary for self-sustained fission of a given nuclide is called what? Choices: - its half-life - its molar mass - its activation energy - its critical mass A:
A: its critical mass

Q: Q: The modern model of the atom, which scientists call the quantum mechanical model, is based on what scientist's work on orbitals? Choices: - Sagan - Bohr - Newton - schrodinger A:
A: schrodinger

Q: Q: Scanning acoustic microscopes use what kind of waves to scan a specimen? Choices: - radio waves - heat waves - gamma waves - sound waves A:
A: sound waves