j1722
j1722 j1722
  • 06-11-2022
  • Health
contestada

How does exercise help the cardiovascular system?

O It weakens the heart.

O It slows the heartbeat.

O It changes hormone levels.

O It increases the oxygen in the blood.

Respuesta :

Otras preguntas

An example of an aerobic exercise a) long distance running b) Sprinting c) long distance swimming d) both 1 and 3
seven times the number, n, and four. what expression represents the phrase 4(n+7) 7
I forgot how to use factor trees and factor tables, help me please!
What does utter disbelief mean
what would happen if t. brucei suddenly loss the ability to undergo antigenic variation
in jillians garden there are 3 rows of carrots 2 rows of string beans and 1 row of peas there are 8 plants in each row how many plants are there in garden?
The volume of a can is 804cm3.The Diameter of the top and bottom of the can is 8cm.Is the tin taller than 15cm?
Calvin bought 20 pencils at $0.45 each. How much change did he get from a $10 bill?
what is the past tense
earl has 4 more dimes than quarters. if earl has 10 quarters, how many dimes does he have?