Answer:
Chitin is a long-chain polymer derived from glucose. It strengthens cell walls of fungi and the outer covering (exoskeleton) of arthropods (including crabs, shrimps, and insects).
Explanation:
Heart Blood vessels. (Arteries, Capillaries, and Veins)
Answer:
Option A 0% seems to be the answer
Explanation:
if not B then A
Answer:
_True____ Sedimentary rocks are an important source of information about the Earth's history. __False___ Hypothesis is a well-tested and accepted view that explains scientific observations. __True___ Elements are the basic building blocks of minerals. _True____ There have been 5 mass extinction events. __True___Hydrogen and Helium are used in the process of fusion __False___The oldest rocks are found in the upper sedimentary layers. __False___Intrusive rocks are found on the surface. _False____ Nonrenewable resources can be renewed in relatively short time spans __True___There is geologic evidence that the earth has experienced many episodes of mountain building and erosion.
Explanation:
Sedimentary rocks can contain fossils because, unlike most igneous and metamorphic rocks, they form at temperatures and pressures that do not destroy fossil remains.
A scientific theory is a well tested and widely accepted view that scientists agree best explains certain observable facts
Answer:
See details below...
Explanation:
SRP binds to the ER signal sequence of the newly forming polypeptide chain and halts protein synthesis, thereby preventing the chain from growing beyond 199 amino acids. Upon docking, the nascent peptide chain is inserted into the translocon channel where it enters into the ER. Protein synthesis resumes as SRP is released from the ribosome without this a complete pre prolactin chain might be produced.
