which if any of the following statements about the biosphere are correct
Logo

Nursing Elites

HESI A2

Biology HESI A2 Practice Test

1. Which, if any, of the following statements about the biosphere is correct?

Correct answer: A

Rationale: Statement A is correct. The biosphere refers to the part of the Earth where life exists, including the land, water bodies, and atmosphere. It is the zone where living organisms and ecosystems exist. Statement B is incorrect because the biosphere covers various ecosystems on Earth but does not encompass the entire surface of the planet. The biosphere includes regions such as the lithosphere (land), hydrosphere (water bodies), and atmosphere, but not every part of the Earth's surface. Therefore, option C, stating both A and B are correct, is inaccurate. The correct answer is option A, as it accurately defines the biosphere.

2. The sebaceous glands are part of which system?

Correct answer: D

Rationale: The sebaceous glands are a component of the integumentary system, which includes the skin, hair, nails, and associated structures. Sebaceous glands are typically found throughout the skin and are responsible for producing an oily substance called sebum, which helps keep the skin and hair lubricated and moisturized. The endocrine system (Choice A) consists of glands that produce hormones, the digestive system (Choice B) is responsible for processing food, and the respiratory system (Choice C) is involved in breathing and gas exchange.

3. Two objects attract each other with a gravitational force of 12 units. If you double the mass of both objects, what is the new force of attraction between them?

Correct answer: C

Rationale: The gravitational force between two objects is directly proportional to the product of their masses. When you double the masses of both objects, the force of attraction between them increases by a factor of 2 x 2 = 4. Therefore, the new force of attraction between the two objects will be 12 units x 4 = 24 units. Choices A, B, and D are incorrect because doubling the mass results in a quadruple increase in force, not a linear one.

4. Select the word or phrase that makes this sentence grammatically correct: 'The development committee ____ a bargain with the city planners.'

Correct answer: C

Rationale: The correct answer is 'C: struck.' In this context, the correct verb form should be 'struck' as it is the past tense form of 'strike.' Therefore, the correct sentence should read: 'The development committee struck a bargain with the city planners.' Choice A, 'striked,' is incorrect as 'strike' is an irregular verb, and the past tense is 'struck' rather than 'striked.' Choice B, 'stroke,' is incorrect as it is not the correct past tense form of 'strike' in this context. Choice D, 'strike,' is incorrect as it is the base form of the verb and does not fit the sentence structure requiring a past tense verb.

5. What is the chemical symbol for sodium?

Correct answer: B

Rationale: The correct chemical symbol for sodium is 'Na.' In the periodic table, sodium is represented by the symbol 'Na,' derived from its Latin name 'natrium.' The symbol 'N' represents nitrogen, not sodium. 'Cl' is the symbol for chlorine, and 'H' is the symbol for hydrogen. Therefore, 'Na' is the correct chemical symbol for sodium.

Similar Questions

A person consumed 75 grams of protein. This is 30% of the recommended daily intake (RDI) for protein. How many grams of protein does the person need to consume to meet the full RDI?
Divide: 727 ÷ 6 =
Which word is NOT used correctly in the sentence? 'A sentence must always begin with a capital letter, but many people forget this rule.'
Multiply: 6 × 0.06 =
What does 'expand' mean?

Access More Features

HESI A2 Basic
$49/ 30 days

  • 3,000 Questions with answers
  • 30 days access

HESI A2 Premium
$99/ 90 days

  • Actual HESI A2 Questions
  • 3,000 questions with answers
  • 90 days access

Other Courses