Introductory Biology |
Contents
INTRODUCING LIVING ORGANISMS | 2 |
HOW ORGANISMS SECURE FOOD | 14 |
A BALANCED DIET FOR MAN | 24 |
Copyright | |
60 other sections not shown
Common terms and phrases
alleles amino acids arteries auricle auxin bacteria birds blood cells blood vessels body bones brain called capillaries carbon dioxide cavity chemical chlorophyll chromosomes clot coelom color contraction cord cytoplasm diffusion digestive disease earthworm embryo energy enzymes factors fats fibers flow fluid forest function gametes gametophyte genes glands glucose grow growth hair heart hemoglobin hormones human hybrid hydra impulses increase infection intestine kidneys known layer leaves living lungs lymph mammals materials mechanism membrane metabolism molecules muscle muscular nerve nervous system neurons normal occur organisms oxidation oxygen pair phloem photosynthesis plasma pressure produce proteins protoplasm receptors reproductive respiratory result root salts seed sex organs skin soil species sperms spinal spores sporophyte starch stem stimulation structure substances sugar supply surface synthesis teeth temperature tion tissue tract trees tube tubules vacuole valves veins ventricle vertebrates vitamin walls xylem