Giving brainiest 5 star ty and follow! Please help i need it

Acceleration is a direct result of a.) balanced forces b.) unbalanced forces c.) gravity d.) velocity

When you run, you begin to breathe heavier and faster. your heart beats more quickly, bringing more oxygen to your cells. which organ systems are working together here?

Consider the venn diagram of plant reproduction. where in this image, areas a - d, would you insert the picture of the orange lily?