Radiata contain two germ layers including the ectoderm and the endoderm, other Eumetazoa differ in that they have an additional layer called the mesoderm.
The boundaries between atmospheric layers are determined by changes in temperature and composition. For example, the boundary between the troposphere and stratosphere is defined by the tropopause, where temperature begins to increase with altitude. The boundaries between layers are also influenced by the mixing of gases and other atmospheric properties.
Atmosphere layers are distinguished by changes in temperature with altitude. The five main layers are the troposphere, stratosphere, mesosphere, thermosphere, and exosphere, each characterized by distinct temperature profiles and atmospheric phenomena. These layers have different compositions, densities, and interactions with solar radiation and other factors.
The mesosphere is an atmospheric layer, which can also be considered a collection of layers. The mesosphere lies above the stratosphere but below the thermosphere, the other two "middle" layers of the atmosphere.
Because there different kind of layers and they each are totally different from each other!
Coelmata, three tissue layers, and in the larval state they posses a notochord.
how do animal differ from onr other
The Earth's layers differ in composition, density, and physical properties. The outermost layer is the crust, which is solid and relatively thin compared to the other layers. Beneath the crust is the mantle, which is mostly solid but can flow slowly over long periods of time. At the center is the core, consisting of a liquid outer core and a solid inner core, with the inner core being the hottest and densest part of the Earth.
In ancient times, it was believed that there were seven heavens, one above the other. God sat in the highest heaven, while various angels and spirits inhabited each of the lower heavens. Rather than based on atmospheric layers, it was really based on the motions of the sun, moon, planets and stars, since each was believed to occupy a different level in the heavens.
They have a different number of neutrons.
The number of protons is different.
The ozone layer is a specific region in the stratosphere that contains a high concentration of ozone gas, which helps to protect Earth from harmful UV radiation. The atmosphere, on the other hand, is the blanket of gases that surrounds the Earth and is composed of multiple layers, including the troposphere where we live, the stratosphere where the ozone layer is found, and others.