Nokea
What is Diffusion?
- A. Movement of materials from low concentration to high concentration
- B. Movement of materials from high concentration to low concentration
- C. Absorption of nutrients
- D. Breaking of materials
Correct Answer: B
Rationale: Diffusion is the process where substances move from an area of high concentration to an area of low concentration. This movement occurs due to the random motion of particles and continues until equilibrium is reached. Choice A is incorrect because diffusion occurs down the concentration gradient, from high to low concentration, not from low to high concentration. Choice C is incorrect as it refers to the uptake of substances by cells, not the general process of diffusion. Choice D is incorrect as it does not accurately describe the process of diffusion; diffusion involves the movement of substances, not the breaking of materials.
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Which sentence uses the correct form of the verb?
- A. She has completed the project
- B. She has completed the project
- C. She has been completed the project
- D. She has completed the project
Correct Answer: B
Rationale: The correct answer is 'She has completed the project.' The sentence uses the present perfect tense with 'has completed,' which is the correct form of the verb. Choice A is incorrect due to the subject-verb agreement error ('She' requires 'has' instead of 'have'). Choice C is incorrect as it changes the meaning by using the passive voice 'has been completed' instead of the active voice. Choice D is incorrect as 'complete' should be 'completed' to match the present perfect tense.
It seems like the sun _____ on Saturday.
- A. never shines
- B. never shone
- C. rarely shines
- D. sometimes shines
Correct Answer: B
Rationale: The correct answer is 'never shone' as the sentence is discussing a past event (Saturday). 'Never shone' is the correct past tense form to describe the sun not shining on a specific day in the past. Choices A, C, and D are incorrect because they do not provide the appropriate past tense form needed in this context. 'Never shines' is present tense, 'rarely shines' implies occasional shining, and 'sometimes shines' suggests occasional shining as well, none of which accurately convey the past event of the sun not shining on Saturday.
What is the meaning of ostracize?
- A. Praise
- B. Snub
- C. Accept
- D. Include
Correct Answer: B
Rationale: The correct answer is B: 'Snub.' To ostracize someone means to intentionally exclude or ignore them. Choices A, C, and D are incorrect because ostracize has a negative connotation, opposite of 'Praise,' 'Accept,' and 'Include.' Ostracize involves rejecting or isolating someone, which contrasts with the positive actions associated with the other choices.
Which term refers to the surgical removal of an organ's contents?
- A. Excretion
- B. Evisceration
- C. Incision
- D. Reduction
Correct Answer: B
Rationale: The correct answer is B, 'Evisceration.' Evisceration specifically means the surgical removal of an organ's contents. Choice A, 'Excretion,' is the process of eliminating waste products from the body and is not related to surgical procedures. Choice C, 'Incision,' refers to the act of cutting into the body, commonly done in surgeries but not specifically related to removing organ contents. Choice D, 'Reduction,' generally means to make something smaller or lessen its size, which is not the term used for the surgical removal of an organ's contents.
Which word is used incorrectly? 'I did the work before he asked me to.'
- A. did
- B. work
- C. asked
- D. before
Correct Answer: A
Rationale: The word 'did' is correctly used in the sentence to form the past tense of the verb 'do.' In this context, 'did' is the appropriate term. The other words in the sentence, 'work,' 'asked,' and 'before,' are all used correctly and do not represent an incorrect word choice. Therefore, 'did' is the only word that is not used incorrectly in the given sentence.