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irinina [24]
2 years ago
7

The valves in the heart open and close to move blood in between heart chambers. O a) three directions O b) two directions O c) f

our directions d) one direction
SAT
2 answers:
Lemur [1.5K]2 years ago
5 0

Answer:

  d) one direction

Explanation:

The purpose of the various valves in the circulatory system is to keep blood flowing in one direction. The valve opens to allow blood flow one way, and closes to prevent blood flow the other way.

guajiro [1.7K]2 years ago
3 0

Hi,

The valves in the heart open and close to move blood in between heart chambers.

Answer:

d) one direction

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Nancy has not used the most effective word in sentence 4. Which word should replace have to create a more effective sentence?.
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The best word to replace "have" is the word "manage".

<h3>What is an effective word?</h3>

A word is considered effective/ineffective depending on whether the word transmits the author's message. In the case of Nancy, she wants to show students struggle as they deal with classes, homework, and extracurricular activities.

<h3>How to replace the word "have"?</h3>

The word "have" is ineffective because it does not completely show how difficult the situation is for students. One word that can show this struggle is "manage" because this emphasizes Nancy's point of view.

Note: This question is incomplete because the text and options are missing; here are the missing sections:

Four Days Is Enough

(1) Students, are you having a difficult time completing all the activities in your schedule? (2) Teachers, are you exhausted from nonstop work? (3) You are not alone. (4) Every day in schools across the nation, teens have challenging classes, hours of homework, and extracurricular activities such as sports and music.

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A) Carry

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C)Manage

D)Enroll

Learn more about words in: brainly.com/question/28611

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