A chemical does not stimulate appositional growth- weight bearing exercises stiumlate appositional growth.
Nicotien or anything chemical which stimulates the Nicotinic receptors.
antigens
protein
acetylcholine (ACh)
tumor
A. paracrineB. neurotransmitterC. autocrineD. endocrine
Because their elemental compositions can vary continuously, rather than being fixed at particular values.
yes
An antidiuretic hormone is a hormone secreted by the posterior pituitary gland.
It's a chemical change. The sunlight stimulates the developing fruit to produce chemicals to help it ripen - in order to spread its seeds.
There are many vasodilators. These include histamines, nitric oxide, CO2, H+, K+, adenosine and epinephrine.
An interstitial compound as compounds of transition metals for example their hydrides.