The american heart association recommends eating at least ounces of oily fish per week to reduce your risk of heart disease. a. 7 b. 6 c. 5 d. 4

Ivan is looking at a cross section of a stem taken from a vascular plant. he sees two different types of vascular tissue: the xylem, which is closer to the center of the stem, and the phloem, located around the xylem, closer to the outside of the stem. how do these two structures work together in a living plant?

What is the next step in muscle contraction after the actin changes shape

Can someone me i need the answer and don’t understand?