TEAS 7 science quizlet

TEAS 7 science quizlet Related

Review TEAS 7 science quizlet related questions and content

Which type of joint allows for the widest range of motion, similar to the shoulder joint?

  • A. Hinge joint
  • B. Ball-and-socket joint
  • C. Gliding joint
  • D. Fixed joint
Correct Answer: B

Rationale: The correct answer is B: Ball-and-socket joint. Ball-and-socket joints, like the shoulder joint, allow for the widest range of motion in multiple directions. This type of joint consists of a rounded bone (the 'ball') fitting into a cup-like socket, enabling movements such as flexion, extension, abduction, adduction, and rotation. Choice A, Hinge joint, allows movement in one plane, like a door hinge, and does not offer the same range of motion as a ball-and-socket joint. Choice C, Gliding joint, permits limited motion in various directions but not as wide as a ball-and-socket joint. Choice D, Fixed joint, does not allow any motion as it is immovable, unlike the shoulder joint which is highly mobile.

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Which property of a substance refers to its ability to undergo a chemical change and form new substances?

  • A. Density
  • B. Mass
  • C. Reactivity
  • D. Volume
Correct Answer: C

Rationale: Reactivity is the property of a substance that describes its ability to undergo a chemical change and form new substances through chemical reactions. Density, mass, and volume are physical properties of a substance and do not directly relate to its ability to undergo chemical changes. Density is the mass of a substance per unit volume, mass is the amount of matter present, and volume is the amount of space occupied by the substance. Reactivity specifically deals with how likely a substance is to engage in chemical reactions. Therefore, the correct answer is C - Reactivity.

The process by which two or more species reciprocally influence each other's evolution through selection pressures exerted on one another is called:

  • A. Convergent evolution
  • B. Divergent evolution
  • C. Coevolution
  • D. Coevolution
Correct Answer: C

Rationale: A) Convergent evolution refers to the process by which unrelated species evolve similar traits due to similar environmental pressures. This does not involve reciprocal influence between species.
B) Divergent evolution refers to the process by which two or more related species become more dissimilar over time due to different selection pressures. This also does not involve reciprocal influence between species.
C) Coevolution is the process by which two or more species reciprocally influence each other's evolution through selection pressures exerted on one another. This can lead to a close ecological relationship between the species, such as in predator-prey interactions or mutualistic relationships.
D) This option is a duplicate of option C.

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.

What is the medical term for an ingrown hair?

  • A. Folliculitis
  • B. Hirsutism
  • C. Pseudofolliculitis Barbae
  • D. Alopecia
Correct Answer: A

Rationale: The correct answer is A, Folliculitis. Folliculitis is the medical term for the inflammation of hair follicles, which can be caused by ingrown hairs. Hirsutism refers to excessive hair growth, pseudofolliculitis barbae is a condition where shaving causes ingrown hairs, and alopecia is hair loss. Therefore, choices B, C, and D are incorrect as they do not specifically refer to ingrown hairs.

What causes stretch marks?

  • A. The epidermis layer becomes inflamed
  • B. The dermis layer becomes inflamed
  • C. The dermis layer tears due to rapid stretching
  • D. Sebaceous glands become clogged
Correct Answer: C

Rationale: Stretch marks occur when the dermis layer tears due to rapid stretching of the skin. This tearing leads to the appearance of stretch marks, which are often red or purple at first and then fade to a silvery-white color over time. Inflammation of the dermis or clogging of sebaceous glands are not directly related to the formation of stretch marks. Therefore, choices A, B, and D are incorrect as they do not describe the actual cause of stretch marks.

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