Answer:
They belong in the Chordata phylum
Explanation:
That answer is true hope that helps you
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<span>The advantage that the phylogenic classification system has over the Linnaean system is that the phylogenic system defines each organism as a plant or animal; The Linnaean system does not. Apparently, this is a huge flaw that the Linnean system has, because it is quite important to distinguish between plants and animals, especially in such cases when it is not obvious at the first glance.</span>
Answer:
Nucellus makes the most of the ovule. It encloses the embryo sac. They have abundant food reserves and therefore act as nutritive tissues for the embryo in some plants.
Answer:
Hello!
The answer is B. It is made up of amino acids.
Explanation:
Collagen:
Collagen is the most abundant protein found in mammals and makes up 25%of the entire protein count. Collagen is mostly present in the form of collagen fibers which give the extracellular matrix structure and support.
Amino acids:
Amino acids are organic molecules that possess the amino (-NH2) functional group. Amino acids are the building block of proteins. They combine together through peptide linkages to form polypeptides and polypeptides link together in the form of complex proteins.
Collagen possesses a complex structure of amino acids arranged in three alpha-chains wound around each other to give a triple-helix.
