Which new evidence has provided scientists with greater understanding of species relationships?

a. fossil discoveries

b. embryo development

c. homologous structures

d. protein sequences

Where do you think the body gets the needed minerals? your answer?

Cardiac muscle cells (fibers) that do not contract but instead create and conduct the action potential throughout the heart are atrial fibers. autorhythmic fibers. ventricular fibers. contractile fibers.

What would happen if earth did not retain the heat from its formation

What part do tiny solid particals in the atmosphere play in cloud formation

An object's motion changes A. when the forces acting on the object remain balanced. B. only if the object is at rest when a force acts upon it. C. only when a nonzero net force is applied to the object. D. all of these

A farmer crossed a yellow maize plant (Yy) with another yellow maize plant (YY). He planted 200 seeds from this cross. How many of the plants would be yellow?

How do the methods of scientists lead to knowledge?

Actions you do without thinking about them

Joe begins to experience mood swings and disturbed thirst and hunger. Imaging studies indicate that a brain tumor is the likely cause of these disorders. In what part of the brain is the tumor most likely located?

How to use light in energy to make glucose?