# During the systole phase of the cardiac cycle, the left ventricle contracts and blood is pumped into the aorta. Which of these valves prevent a backflow of blood into the left atrium? A. Aortic valve B. Tricuspid valve C. Mitral valve

###### Question:

During the systole phase of the cardiac cycle, the left ventricle contracts and blood is pumped into the aorta. Which of these valves prevent a backflow of blood into the left atrium?
A. Aortic valve
B. Tricuspid valve
C. Mitral valve

### What type of number is 29

What type of number is 29...

### Tiffany is making bread for the banquet. She needs to make 7 batches with 2 1/2 pounds of flour in each batch. How many 10 pound bags of flour will she need to buy ?

Tiffany is making bread for the banquet. She needs to make 7 batches with 2 1/2 pounds of flour in each batch. How many 10 pound bags of flour will she need to buy ?...

### Equation practice ........​

equation practice ........​...

### Help me with math questions

help me with math questions...

### ASK A QUESTION There are 4 queens in a standard deck of 52 cards. You pick one card at random. What is the probability of not picking a queen?

ASK A QUESTION There are 4 queens in a standard deck of 52 cards. You pick one card at random. What is the probability of not picking a queen?...

### Three-hundredths of what number is 15.3?

Three-hundredths of what number is 15.3?...

### How many two-thirds are in four-thirds

How many two-thirds are in four-thirds...

### Find the surface area of each rectangular prism. round to nearest tenth if necessary​

find the surface area of each rectangular prism. round to nearest tenth if necessary​...

### PLS HELP volume problem

PLS HELP volume problem...

### What did the Founding Fathers promise they’d do to gain support for the constitution?

What did the Founding Fathers promise they’d do to gain support for the constitution?...

### I need help! You work for a poster company that sells prints of album covers. You sell posters at the prices given in the table. Number of Posters Price 2 $40 3$50 5 $70 10$120 What is the unit cost per poster for the best deal? A. $10 B.$12 C. $14 D.$20

I need help! You work for a poster company that sells prints of album covers. You sell posters at the prices given in the table. Number of Posters Price 2 $40 3$50 5 $70 10$120 What is the unit cost per poster for the best deal? A. $10 B.$12 C. $14 D.$20...

### Numbers like 10,100,1000, and so on are called blank

Numbers like 10,100,1000, and so on are called blank...

### 50 points Which of the following is NOT a primary indicator of environmental racism? Select the best answer choice. A. The kind of pollution in reservation communities B. Location of waste facilities C. Enforcement of environmental regulations D. Structure of environmental agencies and groups

50 points Which of the following is NOT a primary indicator of environmental racism? Select the best answer choice. A. The kind of pollution in reservation communities B. Location of waste facilities C. Enforcement of environmental regulations D. Structure of environmental agencies and groups...

### What was the Aliied strategy for World War || ? A.)Allies focus on defeating the Axis in Europe before focusing on the pacific B.)Allies focus on defeating the Axus in the pacific before focusing on Europe C.)Soviet Union would focus on Germent while the U.S. focused on Japan D.)The U.S. would focus on the pacific while the other Allies focused on Europe

What was the Aliied strategy for World War || ? A.)Allies focus on defeating the Axis in Europe before focusing on the pacific B.)Allies focus on defeating the Axus in the pacific before focusing on Europe C.)Soviet Union would focus on Germent while the U.S. focused on Japan D.)The U.S. would focu...

### Ana’s gymnastics scores were posted on the scoreboard in order from highest to lowest score. One digit in her floor score is not visible. List all the possible digits for the missing number. Vault- 15.500 Floor- 15._66 Uneven Bars- 15.133 Beam- 14.200 What is the difference between her vault score and her uneven bar score?

Ana’s gymnastics scores were posted on the scoreboard in order from highest to lowest score. One digit in her floor score is not visible. List all the possible digits for the missing number. Vault- 15.500 Floor- 15._66 Uneven Bars- 15.133 Beam- 14.200 What is the difference between her vault scor...