Some researchers claim that sponge genomes have homeotic genes (genes that regulate development of anatomical structures), but no Hox genes (genes that regulate development of posterior-anterior axes and body segments). If true, this finding would .

Now it's your turn to investigate human impact around the world. grab your virtual lab coat and put on your environmental science hat. you will be taking a trip around the globe to explore three locations. at each location, you will investigate the cause and effect relationships of deforestation, desertification, and urbanization. you will also gather evidence of how these factors have impacted the environment over time

Which of the following is the source of energy for photosynthesis? a.) glucose b.) chlorophyll c.) carbon dioxide d.) sunlight

Each nephron is made up of capillaries that form the __ sweat glands bladder glomerulus ureter