ATI TEAS 7
TEAS 7 science quizlet
1. Which term describes the ability of a substance to conduct electricity?
- A. Reactivity
- B. Density
- C. Conductivity
- D. Viscosity
Correct answer: C
Rationale: Conductivity is the correct term used to describe the ability of a substance to conduct electricity. Reactivity is the measure of a substance's tendency to undergo chemical reactions. Density refers to the mass per unit volume of a substance, while viscosity is a measure of a fluid's resistance to flow. In the context of conducting electricity, conductivity is the most appropriate term as it directly relates to the substance's electrical conductive properties.
2. During the process of oogenesis, primary oocytes produce:
- A. sperm.
- B. eggs.
- C. oogonia.
- D. stem cells.
Correct answer: B
Rationale: During the process of oogenesis, primary oocytes undergo meiosis to develop into secondary oocytes, which are the matured eggs released during ovulation for potential fertilization. Therefore, primary oocytes produce eggs, not sperm, oogonia, or stem cells, during oogenesis. Choice A (sperm) is incorrect as sperm is produced through spermatogenesis in males. Choice C (oogonia) is incorrect as oogonia are the cells that give rise to primary oocytes but are not the direct product of primary oocytes. Choice D (stem cells) is incorrect as primary oocytes do not directly produce stem cells during oogenesis.
3. Which part of the hair is not attached to the follicle?
- A. Bulb
- B. Root
- C. Shaft
- D. Strand
Correct answer: C
Rationale: The correct answer is C, 'Shaft.' The hair shaft is the part of the hair that extends above the skin surface and is not attached to the follicle. The bulb and root are parts that are connected to the follicle as they are located below the skin surface and play a role in hair growth. The strand, on the other hand, refers to a single hair fiber and is not a distinct part of the hair anatomy.
4. What is the scientific name for the kneecap?
- A. Patella
- B. Femur
- C. Tibia
- D. Fibula
Correct answer: A
Rationale: The correct answer is A: Patella. The patella is the scientific term for the kneecap, a small, flat, triangular bone situated in front of the knee joint. The femur, tibia, and fibula are also bones in the leg, but they are not synonymous with the kneecap. The femur is the thigh bone, the tibia is the shin bone, and the fibula is the outer lower leg bone. Therefore, the correct term for the kneecap specifically is the patella.
5. What does the term 'electron configuration' refer to in relation to an atom?
- A. The arrangement of electrons in an atom's orbitals.
- B. The number of protons in an atom's nucleus.
- C. The number of neutrons in an atom's nucleus.
- D. The number of electrons in an atom's valence shell.
Correct answer: A
Rationale: The electron configuration of an atom refers to the arrangement of electrons in the atom's orbitals. This arrangement determines the atom's chemical properties and behavior. The number of protons in an atom's nucleus (option B) is known as the atomic number, which defines the element. The number of neutrons in an atom's nucleus (option C) contributes to the atom's mass number. The number of electrons in an atom's valence shell (option D) is important for understanding the atom's reactivity and bonding behavior, but the electron configuration specifically refers to how electrons are distributed among the different orbitals in an atom.
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