Input: Answer this question:
Which scientific model could be used to predict the properties of an element?
OPTIONS:
- closed loop system
- Punnett square
- Periodic Table
- water cycle chart
Answer: Periodic Table
*Question*: Researchers recently discovered a gene in humans that previously was unknown to science. Which statement best explains why the gene probably was not discovered much sooner? OPTIONS:
- The gene only recently evolved in humans.
- The technology used to study genes is still being developed.
- Scientists were not interested in genes until a few years ago.
- Scientists were sure they had already discovered every possible gene.
*Answer*: The technology used to study genes is still being developed.
question:
Which of the following can provide the human body with long-term immunity against some diseases?
OPTIONS:
- antibiotics
- vitamins
- vaccines
- red blood cells

answer:
vaccines
[Q]: Termites eat wood but cannot digest it. Protozoans live in the termites' stomachs and use enzymes to break down the wood. The digested wood provides nutrition for both the termites and the protozoans. What type of relationship is this?
===
OPTIONS:
- mutualism
- parasitism
- predation
- commensalism
****
[A]: mutualism
question below:
Perfume sprayed from a bottle spreads more easily in a warm room of 25°C than in a cool room of 15°C. Which of the following correctly compares perfume molecules at 25°C to those at 15°C?
OPTIONS:
- At 25°C, they have more mass.
- At 25°C, they are moving faster.
- At 25°C, they have less kinetic energy.
- At 25°C, they are decreasing in volume.
answer below:
At 25°C, they are moving faster.
question:
Which of the following is most responsible for the decay of dead organisms?
OPTIONS:
- water
- mammals
- microorganisms
- nitrogen

answer:

microorganisms