A challenge to traditional (pre-1860) ideas about species came from embryology, when it was discovered that embryos of dissimilar organisms, such as sharks and humans, resemble each other. Embryology involves the study of the formation and the development of an embryo and the fetus. It is one type of evidence of evolution such that the embryos of many different kinds of animals, mammals, reptiles, birds, fish among others, are similar showing a common ancestry.
In a Solid, particles are tighly packed together.
In a Liquid, they are farther apart
In a Gas, they are even farther apart.
*Melting = Liquid
*Freezing = Solid
* (E)vaporation = Gas
Nicotine, once in the brain, will work specifically on nicotinic receptors in the brain. However, there is a common "addiction" pathway in the brain that pretty much all addictive substances go through.
they can be up to approximately 200 feet tall..They grow just bout 13 feet tall each year depending on the tree
Hope i helped <3
D. To identify any differences between the control group and the
experimental group
