A. Veins
B. <span>Arteries
C. </span><span>Capillaries</span>
Answer:
It is often said that life is “carbon-based.” This means that carbon atoms, bonded to other carbon atoms or other elements, form the fundamental components of many, if not most, of the molecules found uniquely in living things. Other elements play important roles in biological molecules, but carbon certainly qualifies as the “foundation” element for molecules in living things. It is the bonding properties of carbon atoms that are responsible for its important role.
Carbon Bonding
Explanation:
A nucleotide or a nucleic acid either one :)
Pretty sure it's A (bacteria)
Hormones are called chemical
messenger of the body, which occur in various tissues where they are produce. They
occur in response to specific biochemical signals from a wide range of
regulatory systems and behavioral activities that is vital in the communication
between organs and tissues. Moreover, hormones create a cellular response by
binding to cell membrane or intercellular receptors.
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