micniell1Tian micniell1Tian

13-05-2016
Biology

contestada

The heart valves act like doors.

TrueFalse

Respuesta :

princesslove1234 princesslove1234

13-05-2016

its true as you breath your heart and lungs go in and out as if you were swinging a door open and shut letting oxgen in and out hope i could help :)

Answer Link

Otras preguntas

find every fraction with a whole number denominator less than 50 that is equivalent to 10/15.

(3-7m)+2(3.5m+1) how do you solve this math problem I don't get it help me please

(64a^-6b^12)^5/6simplify the expression

what is the antonym for bicycle

EXAMPLE problem: 9.1 divided by 3576 rounded to the nearest whole number

X=-5 and Y=-6 (x+3y) squared.

complet. each statement by rounding the number to given place value. use the number line to show your work a 53,000 rounded to the nearest ten thousand is

A plant uses the energy from sunlight to create oxygen and glucose from carbon dioxide and water. Which statement is true about the changes that have occurred?A

Explain how to write the number that is one million more than 458,610,008

Suppose the tortoise travels for 12 seconds. Explain how you could find the distance the tortoise travels