Q: In which process do two light nuclei combine to produce a heavier nucleus and great energy? Choices: - general fusion - light fusion - certain fusion - nuclear fusion A:
nuclear fusion

Q: What are the membrane-bound organelles that are usually larger than vesicles and can have secretory, excretory, and storage functions? Choices: - ribosomes - tubules - nucleolus - vacuoles A:
vacuoles

Q: Q: What is emitted by atoms that have been excited by thermal excitation, electron collision, or collisions with photons of exactly the right frequency? Choices: - electricity - gravity - radioactivity - light A:
A: light

Question: Q: What is the term for the average number of individuals in a population per unit of area or volume? Choices: - population diameter - population structure - Density group - population density A:
Answer: population density

*Question*
Q: What does the geiger counter detect? Choices: - vibration - convection - moisture - radiation A:
**Answer**
radiation

(Q).
Q: What is a layer of tissue that lies between the shell and the body? Choices: - stem - silt - node - mantle A:
(A).
mantle