Glands of the exocrine system release their hormones a. directly onto the hormones target cells
b. directly onto the skins epithelial cells
c. into the bloodstream
d. into attached ducts

Which of the following are false concerning microbes? a. microbes generate oxygen through photosynthesis.b. the primary role of microbes on the planet involves causing disease in animals and humans.c. microbes produce vitamins in the intestines.d. microbes play a role in breaking down waste and decomposing dead organisms.

Which organisms have pharyngeal arches that develop from all three germ layers and go through the same development stages as embryos? 1.bird 2.ladybug 3.starfish 4.snake

Modern whales developed their traits through natural selection what occurs during the process of natural selection