15 free questions from the CinnaEntry TEAS 7 science bank (664 in the app). Tap an answer to check it. The rationale opens right away.
In a solution, the substance that is dissolved is called the:
Answer: B. Solute
The solute is dissolved into the solvent (e.g., salt is the solute in salt water).
The respiratory and circulatory systems work together to supply the body with:
Answer: B. Oxygen
The lungs take in oxygen and the blood transports it to the body's cells.
The process of copying DNA into messenger RNA is called:
Answer: B. Transcription
Transcription copies a DNA gene into mRNA in the nucleus; translation then builds the protein.
The greatest amount of available energy in a food chain is at the level of the:
Answer: B. Producers
Producers hold the most energy; energy decreases at each higher level.
The final step of a scientific investigation is usually to:
Answer: B. Communicate the results
After analyzing data and drawing conclusions, scientists communicate their results.
The frontal lobe of the brain is mainly responsible for:
Answer: B. Thinking, planning, and decision-making
The frontal lobe handles higher functions like reasoning, planning, and voluntary movement.
The pigment that gives skin its color and helps protect against UV light is:
Answer: B. Melanin
Melanin, produced in the epidermis, gives skin color and absorbs harmful UV radiation.
The skeletal system stores which mineral important for strong bones?
Answer: B. Calcium
Bones store calcium (and phosphorus), releasing it into the blood as the body needs it.
Plant cells have a rigid outer structure that animal cells lack, called the:
Answer: B. Cell wall
Plant cells have a cell wall (of cellulose) for support; animal cells have only a cell membrane.
The hormone that helps regulate sleep, secreted by the pineal gland, is:
Answer: B. Melatonin
Melatonin from the pineal gland helps regulate the sleep–wake cycle.
A conclusion drawn from an experiment should be based on the:
Answer: B. Data and results
Conclusions must be supported by the data collected, not opinion.
The body's first physical barrier against most pathogens is the:
Answer: B. Skin
Intact skin is the body's first line of defense, blocking pathogens from entering.
In the 'lock-and-key' model, an enzyme's shape must match its:
Answer: B. Substrate
An enzyme's active site fits a specific substrate, like a key in a lock.
The elements on the left and center of the periodic table are mostly:
Answer: B. Metals
Most elements are metals, found on the left and center of the periodic table.
Which term describes all the members of one species living in an area?
Answer: B. Population
A population is all the individuals of a single species in one area.
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