The heart muscle has four chambers.
a. true
b. false

Fill in the blanks to complete the labels on this model of replicating dna! super

Aproper cool-down routine includes which of the following? a). eating a good-sized meal b. five to 10 minutes of slow walking or jogging and stretching c). less than 5 minutes of cool-down stretches d). sprinting or other strenuous exercise

Checklists and rating scales can be used to monitor children’s developmental progress and to diagnose developmental delays. true false