These leaves grow horizontally, so that the majority of photosynthetic cells are facing upwards and receiving light in the day for photosynthesis. The majority of stomata are found on the lower half so that transpiration does not increase during the day. Dorsiventral leaves can either be 1) simple, consisting of one leave or 2) compound, consisting of many leaves stemming from the same petiole.
Control of Growth & Development tutorials look at how the genetic makeup determines the biological processes on a da..
Homeostasis is essential to maintain conditions within the tolerable limits. Otherwise, the body will fail to function p..
This tutorial is a continuation of the first lesson on chromosomal mutation. Here, find out the chromosomal aberrations ..
Humans are diploid creatures. This means that for every chromosome in the body, there is another one to match it. Howeve..
Human Neurology deals essentially with the nervous system of humans. It also features the various theories put forward b..
The diversification of several new species from a recent ancestral source, each adapted to utilize or occupy a vacant ad..
