<span>B. the complementarity of DNA and RNA
</span>
Stone tools we’re first used around 3,300 BCE
The first diagram is the alpha helix, which is a spiral shape.
The second diagram is the beta pleated sheet which is the folded paper shape
The stem supports the plant and because of the stem the plant is able to grow taller if needed
<span>The
absorption of iron is reduced when you have a diet high in fiber and
phytates. Even though an excess of fiber can have an effect in the
body’s ability to absorb some minerals, fiber is very safe and even
necessary in reasonable amounts. phytatic acids on the other hand are
responsible of binding metallic cations reducing the capacity of the
body of absorbing iron, calcium and zinc and should be consumed with
moderation.</span>
