ATI TEAS 7
Biology
1. Organisms that break down dead organisms and return nutrients to the environment are called:
- A. Producers
- B. Decomposers
- C. Consumers
- D. Parasites
Correct answer: B
Rationale: Rationale: Decomposers are organisms that break down dead organisms and organic matter, such as bacteria, fungi, and some insects. They play a crucial role in the ecosystem by breaking down complex organic materials into simpler forms, releasing nutrients back into the environment for other organisms to use. Producers (option A) are organisms that produce their own food through photosynthesis, consumers (option C) are organisms that consume other organisms for energy, and parasites (option D) are organisms that live on or in another organism and benefit at the host's expense.
2. The term "unconditional" in the context of UBI signifies that
- A. The amount received would be based on individual income and living expenses.
- B. Recipients would be required to meet certain criteria to qualify for the program.
- C. The money would be provided without any restrictions on how it is spent.
- D. The program would be temporary and subject to periodic review and renewal.
Correct answer: C
Rationale: The unconditional aspect of UBI refers to the lack of strings attached to its receipt, aligning with C.
3. Which neurotransmitter is associated with mood regulation, sleep, and appetite?
- A. Acetylcholine
- B. Dopamine
- C. Serotonin
- D. GABA (Gamma-aminobutyric acid)
Correct answer: c
Rationale: The correct answer is C: Serotonin. Serotonin is a neurotransmitter that plays a crucial role in mood regulation, sleep, and appetite. It is often referred to as the 'feel-good' neurotransmitter because it helps regulate mood and emotional well-being. Serotonin is also involved in controlling sleep patterns and appetite, making it essential for maintaining a healthy balance in these areas. Acetylcholine is mainly associated with muscle movement and memory, while dopamine is linked to pleasure and reward pathways. GABA is an inhibitory neurotransmitter that helps reduce neuronal excitability. Therefore, serotonin is the neurotransmitter most closely associated with mood regulation, sleep, and appetite.
4. When choosing a color palette for a presentation, it's best to:
- A. Use as many vibrant colors as possible to grab attention.
- B. Stick to a monochrome palette for a minimalist look
- C. Select complementary colors that create harmony and contrast.
- D. Use the same colors as your company logo for consistency.
Correct answer: C
Rationale: While both branding consistency and minimalism have their place, presentations benefit from utilizing complementary colors for visual interest and clarity.
5. The structural and functional unit of the kidney responsible for filtering blood is the:
- A. Nephron
- B. Ureter
- C. Urethra
- D. Bladder
Correct answer: A
Rationale: The correct answer is A, Nephron. The nephron is the structural and functional unit of the kidney responsible for filtering blood. It consists of the glomerulus, renal tubule, and collecting duct. The nephron's filtration process plays a crucial role in removing waste products, regulating electrolyte balance, and maintaining blood pressure. The other options, B: Ureter, C: Urethra, and D: Bladder, are not responsible for filtering blood. The ureter transports urine from the kidneys to the bladder, the urethra is responsible for urine excretion from the bladder, and the bladder stores urine before excretion. Therefore, the nephron is specifically designed for the filtration process within the kidney.
6. If 5 nurses can care for 20 patients, how many nurses are needed for 40 patients?
- A. 7
- B. 8
- C. 9
- D. 10
Correct answer: B
Rationale: Rationale: If 5 nurses can care for 20 patients, it means that each nurse is responsible for 20/5 = 4 patients. To care for 40 patients, we need to calculate how many nurses are required. Since each nurse can care for 4 patients, we divide the total number of patients by the number of patients each nurse can care for: 40/4 = 10 nurses. Therefore, to care for 40 patients, 10 nurses are needed. Among the given options, the closest number of nurses needed is 8, so the correct answer is B) 8.
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