Answer: blood travels from the heart through arteries and blood travels to the heart through the veins.
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Answer:
We will start with a very simple way of showing the arrangement of electrons around an atom. Here, electrons are arranged in energy levels, or shells, around the nucleus of an atom.
Explanation:
Answer:
Direct and indirect sunlight is the main cause for the 4 different seasons
Explanation:
Telomerase is a mutation in which gene would explain this observation. Telomerase<span>, also called terminal transferase, is a ribonucleoprotein that adds a species-dependent telomere repeat sequence to the 3' end of telomeres. A telomere is a region of repetitive sequences at each end of a eukaryotic chromosomes in most eukaryotes.</span>
