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ATI TEAS 7

Physics

1. What happens to the speed of a sound wave when it travels from air to water?

Correct answer: A

Rationale: Sound waves travel faster in denser mediums like water compared to air due to stronger interactions between particles.

2. What is the main function of the urinary system?

Correct answer: D

Rationale: The correct answer is D: 'All of the above.' The main function of the urinary system is not just limited to one specific task but encompasses multiple important functions. It is responsible for maintaining acid-base balance by regulating the pH of the blood through the excretion of acids and bases. Additionally, the urinary system plays a crucial role in filtering waste products from the blood and expelling them from the body, which helps in fighting off infections. Moreover, the urinary system is not involved in transporting oxygen, as this function is primarily carried out by the respiratory system. Therefore, 'All of the above' is the correct choice as it includes the comprehensive functions of the urinary system.

3. You test a new fertilizer on two groups of plants, one with fertilizer and one without. Both groups grow at the same rate. What is the most likely explanation?

Correct answer: C

Rationale: A true control group should be identical to the test group except for the variable being tested. If both groups grew the same despite the fertilizer, it suggests external factors like soil nutrients masked any potential fertilizer effect.

4. Ms. Castro learns that some leaders are transactional leaders. Which of the following does

Correct answer: C

Rationale: The correct answer is C: 'Uses trade-offs to meet goals.' Transactional leaders focus on the exchange or transaction that occurs between them and their followers. They set clear expectations and goals for their followers and use rewards and punishments to motivate them. This approach involves making trade-offs to achieve desired outcomes, such as rewarding employees for meeting targets or penalizing them for not meeting expectations. Options A and B do not directly relate to transactional leadership, as it is more about goal achievement and motivation through rewards and punishments. Option D describes a transformational leader, who inspires and motivates others through a shared vision and values, which is different from the transactional leadership style described in the question.

5. The hypothalamus, a part of the brain, plays a crucial role in endocrine regulation. It secretes GnRH (Gonadotropin-releasing hormone) which stimulates the pituitary gland to produce FSH and LH. What is the MAIN function of FSH and LH?

Correct answer: B

Rationale: The correct answer is B: 'Control growth and development.' FSH (Follicle-stimulating hormone) and LH (Luteinizing hormone) are essential hormones produced by the pituitary gland in response to GnRH from the hypothalamus. FSH plays a key role in stimulating the growth and development of ovarian follicles in females and sperm production in males. LH triggers ovulation in females and stimulates the production of testosterone in males. These hormones are crucial for the reproductive system and play a major role in controlling growth and development during puberty and throughout adulthood. Therefore, the main function of FSH and LH is not to regulate blood sugar levels, stimulate the fight-or-flight response, or maintain calcium homeostasis, making options A, C, and D incorrect.

6. According to Newton's third law of motion, for every action, there is an equal and opposite ___________.

Correct answer: a

Rationale: Newton's third law states that for every force or action, there is an equal and opposite reaction.

Similar Questions

According to Newton's third law of motion, for every action, there is an equal and opposite ___________.
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Which type of energy is possessed by an object in motion?
Which property of a wave determines its pitch in sound waves?
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