prognathous (Science: anatomy) Having the jaws projecting beyond the upper part of the face; opposed to orthognathous. See gnathic index, under Gnathic. Their countenances had the true prognathous character. (Kane) Origin: Gr. Before – the jaw...
Plants, like animals, produce hormones to regulate plant activities, including growth. They need these hormones to respo..
Meet the colorful takahē, an extremely rare flightless bird. Find out more about its unique features and why they matte..
Upon fertilization, a zygote forms and develops into an embryo. This tutorial elaborates on the growth and development f..
Plants protect themselves by releasing hydrogen peroxide to fight against fungal invasion. Another way is by secreting c..
This tutorial looks at the mutation at the gene level and the harm it may bring. Learn about single nucleotide polymorph..
Ferns and their relatives are vascular plants, meaning they have xylem and phloem tissues. Because of the presence of va..
