Answer:
A nebula is a giant cloud of dust and gas in space. Some nebulae (more than one nebula) come from the gas and dust thrown out by the explosion of a dying star, such as a supernova. Other nebulae are regions where new stars are beginning to form. For this reason, some nebulae are called "star nurseries."
Explanation:
Answer: have randomly arranged grains
include quartzite and marble
form from crystallized magma
Metamorphic rocks are those rocks that are modified by heat, pressure and chemical processes, that occurred on the rocks that are buried deep below the earth crust. The exposure of the rocks developing under the earth crust gets altered on the basis of the mineralogy, chemical composition of the rocks and the texture of the rocks.
The non- foliated rocks are type of metamorphic rocks, which are formed by the igenous intrusions. The minerals inside these rocks are formed by the crystallization of the magma, the atoms in these rocks are tightly packed, the external structure of the rocks do not show any kind of layering or band appearance. Therefore, the rocks exhibit randomly packed grains.
The examples of these rocks are hornfels, quartzite, marble and novaculite.
Proteins are formed by linking amino acids with peptide bonds, and the amino acid bond is also formed through a condensation reaction, where the carbonyl and the amine group link together with the release of water.
The answer is C) evidence of exoskeletons and endoskeletons
<span>Arthropods and Tetrapod </span> have an endoskeleton and exoskeleton. Endoskeleton is <span>a skeleton found within the interior of the body </span>while exoskeleton is the external skeleton that supports and protects an animal's body like the outer shell that protects them from predators.
Nerve cells are functionally classified<span> as sensory neurons, motor neurons, or interneurons. Sensory neurons (afferent neurons) are unipolar, bipolar, or multipolar shaped cells that conduct action potentials toward or into the central </span>nervous system<span>.</span>
