Two bird species, G. fuliginosa and G. fortis, found on the Galapagos Islands have similar beak morphologies. Yet the birds live together sharing the food resources. Based on the information provided in the graph, identify the type of relationship between the two species and explain why they cooperatively share food resources.

Name the plastid and pigment likely to be found in the cells of (a) petals of sunflower (b) ripe tomato.

Epinephrine is a hormone released from the adrenal gland of the body, most often in a stressful situation. it is known as the "fight-or-flight" hormone. one way that it causes a response in the body is to activate receptors on muscle cells. where are these cellular receptors located? a. on the cell membrane b. in the nucleus c. on the cell wall d. around the mitochondria

The tubes transporting minerals and water upward are called ?