What animal in this food web is the quaternary (fourth level) consumer?

The image shows ekgs of a person with normal heart waves and of a person having tachycardia. based on this image, what kind of condition is tachycardia? a. the heart beats abnormally fast. b. the heart beats abnormally slow. c. the right atrium of the heart stops working. d. the left ventricle pumps less blood to the aorta.

Which properties describe all matter?

Explain why phospholipid molecules form a bilayer. (3 marks)