They're mineral ions.
Examples are calcium and iron
They can prevent diseases such as ricket (soft bones) and anaemia (not enough blood)
Answer:
<em>A line graph</em>
Explanation:
A line graph would be the best type of graph to show changes over time. A line graph constitutes of a y-axis and an X- axis. The presence of the axis will make is easier to look at the height changes which occur over time. The y-axis of such a graph could show the height, the X axis of such a graph could show the time. Hence, a line graph could be the best one to represent such a change.
<span>Soil creation is an outcome of successions that are carried out. Succession involves a sequence of stages which includes climax stage. It can be primary or secondary too. On the primary succession, colonization of habitats is involved. Reestablishment of a community occurs on the secondary succession. Most of the organisms and other organic components have been ruined.</span>
<h2>
Answer:</h2>
<u>A. Crossing-over between homologues.</u>
<h2>
Explanation:</h2>
In meiosis and mitosis, recombination happens between comparable particles of DNA (homologous groupings). In meiosis, non-sister homologous chromosomes pair with each other so recombination ordinarily occurs between non-sister homologs.
All living organism reproduces either through asexual reproduction or sexual reproduction or sometimes through both mode of reproduction. In both cases let it be sexual or asexual, the mode of cell division namely meiotic and mitotic cell division, the recombination between homologous chromosomes is a typical system utilized in reproduction.
sembrar una planta ejemplo con la cascara de huevo ya que tiene sus propiedades espero te haya ayudado :)
